Quick Answer
Witness is the plain noun: one person who saw or heard something. Witness’s is the singular possessive: it shows that something belongs to one witness, as in “the witness’s testimony.” The form witness’ with a bare apostrophe after the singular noun is outdated and best avoided; modern style guides prefer witness’s. When several witnesses share or own something, the plural possessive is witnesses’. So in almost every sentence you write, the real choice is simply between witness and witness’s.
Meaning of “Witness”
Witness is a regular noun. It names a person who saw, heard, or was present at an event, especially an accident, a crime, or a court case. The plural is witnesses, formed by adding es. You use the plain form whenever nobody owns anything in the sentence and you are simply naming the person.
- The witness called the police right away.
- Police asked every witness to stay at the scene.
- She agreed to be a witness at the wedding.
Witness can also work as a verb, meaning to see or observe something happen: “He witnessed the whole accident.” If your writing keeps repeating the verb form, these other ways to say “means” can freshen up sentences where you mean “this means” or “this shows.”
Meaning of “Witness’s”
Witness’s is the singular possessive of witness. You form it by adding an apostrophe plus s to the singular noun, even though the word already ends in s. It tells the reader that something belongs to, or is connected with, one single witness.
- The witness’s testimony helped the police.
- We wrote down the witness’s phone number.
- The judge read the witness’s statement aloud.
Think of it this way: ask “whose testimony?” If the answer is “one witness,” write witness’s. This follows the standard rule that singular nouns take ‘s, whether or not they already end in s.
Meaning of “Witness'”
Witness’ is a bare apostrophe added to the singular noun witness. Long ago, some writers used this style for any noun ending in s, and you may still spot it in very old books. In modern English, however, it is not standard. Style guides such as the Chicago Manual of Style and the AP Stylebook recommend adding ‘s to singular nouns ending in s, which gives us witness’s, not witness’.
Most of the time, people who type witness’ actually mean one of two correct forms. Either they mean the singular possessive, which should be witness’s, or they mean the plural possessive of several witnesses, which is witnesses’ (note the extra e). If you catch yourself writing witness’, stop and pick one of those two instead.
Key Differences Table
| Term | What It Is | Example |
|---|---|---|
| witness | Plain singular noun; one person who saw something | The witness described the car. |
| witness’s | Singular possessive; something belonging to one witness | The witness’s description was clear. |
| witness’ | Outdated singular possessive; avoid in modern writing | Not recommended; use witness’s. |
| witnesses’ | Plural possessive; something belonging to several witnesses | The witnesses’ stories matched. |
Correct Usage Rules
Follow these five simple rules and you will get the apostrophe right every time.
Rule 1: One owner gets ‘s
For a singular noun, add an apostrophe plus s, even if the noun ends in s. One witness owns the statement, so write the witness’s statement.
Rule 2: Several owners get s’ (with the plural first)
For a plural noun that already ends in s, add only the apostrophe. Several witnesses share the story, so write the witnesses’ story. Build the plural first (witnesses), then add the apostrophe.
Rule 3: Never use a bare apostrophe on a singular noun
Witness’ looks like a plural possessive but is missing the e. Modern readers may read it as a typo. Write witness’s for one witness or witnesses’ for many.
Rule 4: Say it out loud
Witness’s is pronounced “wit-ness-iz,” with an extra syllable. If you hear that extra syllable when you read the sentence, the ‘s spelling is correct. This spoken test works for similar words too, for instance James’s or the class’s. For variety in formal writing, these other ways to say “for instance” can keep your examples from sounding repetitive.
Rule 5: Keep it consistent in one document
Some older legal documents mix witness’ and witness’s. Pick witness’s and use it throughout. Consistency matters more than anything else in reports, essays, and court filings.
Example Sentences
Here are twelve sentences showing each form in everyday contexts, from courtrooms to classrooms.
Plain “witness” (the noun)
- A witness saw the delivery truck run the red light.
- The lawyer thanked each witness for coming to court.
- As a witness, you must tell the truth under oath.
- The news reporter interviewed a witness at the scene.
When you quote what a witness told you in an essay or report, you will use the verb “said” a lot. These other ways to say “said” in writing will help you vary your reporting verbs.
Singular possessive “witness’s”
- The witness’s account differed from the driver’s.
- Police confirmed the witness’s identity before the trial.
- A single witness’s memory can decide a case.
- The detective noted the witness’s exact words.
Plural possessive “witnesses'”
- The witnesses’ statements all pointed to the same car.
- Both witnesses’ signatures appear on the form.
- The jury compared the three witnesses’ timelines.
- Reporters protected the witnesses’ privacy.
In a formal email, you might attach a file and write “Please find the witness’s statement attached.” If that phrase feels overused, try these formal alternatives to “please find attached” to sound more natural.
Common Mistakes
Mistake 1: Writing “witness'” for one witness
This is the most common error. Writers see the final s and assume no extra s is needed. Wrong: “The witness’ car was parked outside.” Right: “The witness’s car was parked outside.”
Mistake 2: Writing “witness’s” for several witnesses
If two people own the statement, the plural comes first. Wrong: “The witness’s agreed on the details.” Right: “The witnesses’ agreed on the details” is still awkward; better: “The witnesses agreed on the details” or “The witnesses’ statements agreed.”
Mistake 3: Confusing possessive with plural
“Three witness’s came forward” is wrong twice over: the plural of witness is witnesses, with no apostrophe at all. Apostrophes never make plurals.
Mistake 4: Mixing forms in formal documents
In police reports, legal letters, and court filings, switching between witness’ and witness’s looks careless. When you open a formal letter, skip stiff openers and use these alternatives to “to whom it may concern” to sound more natural.
Mistake 5: Adding wordy phrases around the possessive
Writers sometimes dodge the apostrophe with clumsy workarounds like “the statement of the witness in terms of what he saw.” Shorter is better: “the witness’s statement.” If you lean on filler phrases, these alternatives to “in terms of” will tighten your sentences.
Memory Trick
Remember this sentence: “One witness OWNS it, so give them the extra S: witness’s. Many witnesses SHARE it, so the S is already there: witnesses’.” Count the owners. One owner means you add ‘s. Many owners mean you first make the plural (witnesses) and then hang the apostrophe on the end. If you ever see a lone apostrophe after a singular s, treat it as a red flag and fix it.
FAQs
Is “witness'” ever correct?
Rarely. It appears in very old texts as a singular possessive, but modern style guides prefer witness’s. Treat witness’ as a form to avoid.
What is the plural possessive of “witness”?
Witnesses’. First make the plural (witnesses), then add the apostrophe: “the witnesses’ testimony.”
How do you pronounce “witness’s”?
Say “wit-ness-iz,” with an extra syllable. That extra syllable is exactly why we write the extra s.
Should I write “the witness’s” or “the witness'” in legal writing?
Write the witness’s. It is the modern standard, and consistency across the document keeps it professional.
What is the difference between “witnesses” and “witness’s”?
Witnesses is simply more than one witness, with no ownership. Witness’s shows that one witness owns or is linked to something.
Can “witness” be a verb?
Yes. “To witness” means to see or observe an event: “She witnessed the signing of the contract.” The possessive rules above apply only to the noun.
Is it “a witness’s statement” or “a witness statement”?
Both are correct. A witness’s statement uses the possessive; a witness statement uses “witness” as a noun modifier. Pick one style and stay with it.
What is a polite way to ask a witness for their statement?
Keep it short and respectful: “Could you please share your account of what you saw?” For work emails that need a gentle nudge, these polite alternatives to “please advise” work well too.
Final Summary
- Witness: the plain noun, one person who saw something.
- Witness’s: the correct singular possessive, used in modern writing.
- Witness’: an outdated singular possessive; avoid it.
- Witnesses’: the plural possessive, for something belonging to several witnesses.
When in doubt, count the owners: one owner takes ‘s, many owners take the apostrophe after the plural s. For the full official rules on possessive apostrophes, see the Cambridge Dictionary grammar guide on the apostrophe.
