Chord and cord sound the same, but they mean different things. Chord is for music, geometry, and truss design. It is also the spelling in the idiom “strike a chord.” Cord is for rope, string, electrical cables, body structures like the spinal cord, and a measured stack of firewood.
People mix these words up because they are homophones, meaning they sound alike but have different meanings and spellings. The mix-up shows up in phrases like “vocal cords,” “power cord,” and “struck a chord.” This guide gives you the right spelling for each case, with clear examples and a simple way to remember them.
Quick Answer: Chord vs Cord
Use this table when you need a fast answer.
| Phrase | Correct Spelling | Why |
| Strike a chord | Chord | It comes from music |
| Vocal cords | Cord | They are string-like tissue in the throat |
| Spinal cord | Cord | It is a bundle of nerves |
| Power cord | Cord | It is an electrical cable |
| Power chord | Chord | It is a guitar sound |
| Truss chord | Chord | It is an engineering term |
| Cord of wood | Cord | It is a unit of measure |
| Umbilical cord | Cord | It connects mother and baby |
| Charger cord | Cord | It is a cable |
| Graduation cord | Cord | It is a woven rope worn with a gown |
💡 Tip: If you can plug it in, tie it, or pull it, it is almost always a cord. If you can play it, hear it, or it relates to harmony, it is a chord.
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What Does Chord Mean?
A chord has a few meanings, and they are all separate.
Meaning 1: A group of musical notes: A chord is three or more notes played at the same time. A C major chord is made of the notes C, E, and G. Guitar players, pianists, and singers all use chords to build songs.
Meaning 2: A line in geometry: In math, a chord is a straight line that joins two points on a curve. In a circle, a chord connects two points on the edge. The longest chord in a circle is the diameter.
Meaning 3: A part of a truss: In engineering and building, a truss has a top chord and a bottom chord. These are the main horizontal or sloping members that frame the truss. The shorter pieces between them are called web members.
Meaning 4: An emotional note: In the idiom “strike a chord,” the word means a feeling or idea that rings true for someone. More on this below.
What Does Cord Mean?
Cord has more everyday meanings, mostly about things that are long, thin, and flexible.
Meaning 1: A string or rope: A cord is a thin, strong line made of twisted strands. A bungee cord, a drawstring, and a curtain pull are all cords.
Meaning 2: An electrical cable: A power cord, extension cord, charger cord, aux cord, and HDMI cord are all electrical or data cables with connectors. In American English, “cord” is the usual word for a cable you plug into a wall or a device.
Meaning 3: A structure in the body: Several body parts use the word cord because they are long and slim. Examples include the spinal cord, vocal cords, umbilical cord, and spermatic cord.
Meaning 4: A unit of firewood: A cord of wood is a standard measure of stacked firewood. A full cord is 128 cubic feet. It is usually stacked 4 feet high, 4 feet wide, and 8 feet long.
Meaning 5: A ribbed fabric: Corduroy is a fabric with raised ridges. Some people call these pants “cords.”
Are They Related? A Quick Look at Origin
Chord and cord share a family history. The word cord came into English from Old French and Latin. Its roots go back to the Greek word for a string made from gut, which was used on musical instruments.
The musical word chord began as a shortened form of “accord,” which means agreement or harmony. In the 1500s, writers began adding an h to the musical word. Dictionaries link this change to the influence of the Latin and Greek word for string. That is why the two words look alike even though they now have different jobs.
How to Pronounce Chord and Cord
In American English, both words are pronounced the same way.
- Pronunciation: kord
- IPA: /kɔːrd/
- Syllables: one
- Rhymes with: board, ford, lord, sword
Because the sounds match, you cannot tell the spelling by listening. You have to check the meaning.
Part of Speech and Word Forms
Both words are mainly nouns.
| Word | Part of Speech | Plural | Example |
| Chord | Noun | Chords | She learned three new chords. |
| Cord | Noun | Cords | I need two extension cords. |
Both can also be used as verbs, but this is uncommon. To “chord” means to play chords on an instrument. To “cord” can mean to tie something with a cord, or to stack wood by the cord. Most readers will only need the noun forms.
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Strike a Chord or Strike a Cord?
The correct phrase is strike a chord. It comes from the idea of striking keys on a piano or strings on a guitar and producing a sound. In everyday speech, it means something stirs a feeling, memory, or connection in a listener.
✅ Correct: Her speech struck a chord with the audience.
❌ Incorrect: Her speech struck a cord with the audience.
The same rule applies to “strikes a chord” and “struck a chord.” You will sometimes see “strike a cord” in writing, but it is treated as a spelling mistake.
Vocal Chords or Vocal Cords?
The standard spelling is vocal cords. These are two folds of tissue in the larynx that vibrate to make sound. The word cord fits because they are thin, stringlike structures.
You may still see “vocal chords” online. Some people choose it because singing involves music. But the usual medical and dictionary spelling is “vocal cords,” and most editors will correct “vocal chords.”
✅ Correct: Shouting all night strained his vocal cords.
❌ Incorrect: Shouting all night strained his vocal chords.
Spinal Cord: Always Cord
The spinal cord is the long bundle of nerves that runs down the back and connects the brain to the rest of the body. There is only one correct spelling: spinal cord. “Spinal chord” is a mistake.
Other medical terms follow the same rule. All of these use cord:
- Spinal cord injury
- Spinal cord stimulator
- Tethered cord syndrome
- Umbilical cord
- Nuchal cord, which means the umbilical cord is wrapped around a baby’s neck
- Velamentous cord insertion and marginal cord insertion, which describe where the umbilical cord attaches to the placenta
- Spermatic cord
If the term refers to a body structure, use cord.
Power Chord or Power Cord?
These two phrases are real, but they mean very different things.
| Phrase | Meaning | Example |
| Power chord | A simple guitar chord, usually made of a root note and a fifth, popular in rock music | He played a power chord to start the song. |
| Power cord | The cable that connects a device to an electrical outlet | The power cord for my laptop is frayed. |
The same logic applies to electronics. The correct spellings are extension cord, charger cord, aux cord, USB C cord, HDMI cord, and PS5 power cord. Using “chord” for any of these is a mistake.
Truss Chord or Truss Cord?
The correct term is truss chord. In a roof or bridge truss, the top chord and bottom chord are the main members that carry the structure’s load. The word chord was borrowed from geometry, where it means a line joining two points.
This is one case where the word does not relate to music. If you are writing about construction or engineering, use chord.
Cord of Wood: What It Means
A cord of wood is a standard measurement for firewood. A full cord is a neatly stacked pile that measures 128 cubic feet. That is usually 4 feet by 4 feet by 8 feet.
You may also see “face cord” or “rick” at some firewood sellers. These terms are not always consistent, so it is smart to ask for the exact dimensions before you buy.
✅ Correct: We ordered a cord of oak for the winter.
❌ Incorrect: We ordered a chord of oak for the winter.
Graduation Cord or Chord?
At graduation ceremonies, students sometimes wear a rope shaped band around the neck. It is called a graduation cord or honor cord. Different colors can show academic honors, clubs, or achievements. It is spelled cord because it is a twisted rope.
Chord in Music: A Short Guide
Many searches for “chord” are about music, such as guitar chords, piano chords, and chord progressions. Here is a brief overview.
- Chord: Three or more notes played together.
- Chord progression: A series of chords played in order, such as C, G, A minor, F.
- Chord chart: A diagram that shows finger positions for guitar or ukulele chords.
- Power chord: A simple two- or three-note guitar chord common in rock.
- Common guitar chords: A, B, C, D, E, F, and G, along with minor versions like A minor and B minor.
If you are learning an instrument, a chord chart is the fastest way to see how each shape looks. Chord progression tools and generators can help you test ideas for songwriting.
A note on names: Chord Overstreet is the name of an American actor and singer. In his name, the word is a first name, so it is spelled with the h.
Common Mistakes to Avoid
Mistake 1: Writing “strike a cord.”
❌ The movie struck a cord with fans.
✅ The movie struck a chord with fans.
Why: The idiom comes from music.
Mistake 2: Writing “vocal chords.”
❌ Cold drinks can hurt your vocal chords.
✅ Cold drinks can hurt your vocal cords.
Why: Vocal cords are tissue folds, and the standard spelling is cord.
Mistake 3: Writing “spinal chord.”
❌ He suffered a spinal chord injury.
✅ He suffered a spinal cord injury.
Why: The spinal cord is a bundle of nerves.
Mistake 4: Writing “extension chord” or “charger chord.”
❌ Plug the charger chord into the wall.
✅ Plug the charger cord into the wall.
Why: A charger cord is a cable.
An Easy Way to Remember
Here are two simple memory tricks.
- The “ch” trick. Chord shares its “ch” with choir, chorus, and choral. These are all musical words. Think of chord as the music word.
- The “cable” trick. Cord and cable both start with a hard C and both describe something long and flexible. Think of cord as the rope or wire word.
The one exception is truss chord, which is a technical term borrowed from geometry. Learn it as a special case.
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Chord vs Cord in British English
In British English, the spelling rules are the same. Chord is for music and geometry, and cord is for rope, cable, and body parts. The difference you may notice is vocabulary. British speakers often say “lead” or “flex” for an electrical cord. The spelling of chord and cord does not change.
Synonyms and Related Words
These words help when you want a different way to express the same idea.
| Word | Meaning | How It Differs |
| Cable | A thick wire or bundle of wires | Often used for heavy duty or data connections |
| Wire | A thin metal strand | May not have an outer cover |
| Rope | A thick twisted line | Stronger and thicker than a cord |
| String | A thin line used for tying or instruments | Lighter than a cord |
| Harmony | Notes that sound pleasant together | A broader idea than a single chord |
| Triad | A chord made of three notes | A specific kind of chord |
Frequently Asked Questions
Is it chord or cord?
It depends on the meaning. Use chord for music, geometry, and truss design. Use cord for rope, cables, body structures, and firewood.
Is it “strike a chord” or “strike a cord”?
The correct phrase is “strike a chord.” It comes from striking notes on a musical instrument.
Is it vocal chords or vocal cords?
The standard spelling is vocal cords. “Vocal chords” is a common mistake.
Is it spinal chord or spinal cord?
It is always spinal cord. The spinal cord is a bundle of nerves, not a musical term.
What is the difference between a power chord and a power cord?
A power chord is a guitar sound. A power cord is an electrical cable that plugs into an outlet.
How much is a cord of wood?
A full cord is 128 cubic feet. It is typically stacked 4 feet high, 4 feet wide, and 8 feet long.
Do chord and cord sound the same?
Yes. In American English, both are pronounced /kɔːrd/.
Is it truss chord or truss cord?
It is truss chord. The word is borrowed from geometry and refers to the top and bottom members of a truss.
Conclusion
Chord and cord are homophones with clear, separate jobs. Chord belongs to music, geometry, and truss design, and it is the right word in “strike a chord.” Cord belongs to ropes, cables, body structures like the spinal cord and vocal cords, and the standard unit of firewood.
When you are unsure, ask what the word is describing. If it is something you can play or something that resonates, write chord. If it is something you can plug in, tie, or measure, write cord. With that one question and the “ch” in choir and chorus, you can choose the right spelling every time.
Danish Raza is the author of Grammavio, a trusted resource for simple and easy-to-understand English grammar guides. He creates helpful content covering grammar rules, word meanings, vocabulary, and common grammar mistakes to help readers improve their English skills.
