What does "only" mean?
An only child.
Only
/ˈɑːn.li/ adj, adv, conj, noun, particle, slang
adj, adv, conj, noun, particle, slang ·Very common ·Middle school level
Meaning at a glance
- Primary sense: An only child.
- Grammar: only is listed as adj, adv, conj, noun, particle, slang.
- Nearest alternatives: just, merely, solely, a single.
- Useful contrasts: siblinged, additionally, all.
- Usage evidence: I can only wonder if this is the same for everyone else.
How to use "only"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "only" carries the exact meaning, tone, and strength you need.
- Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.
Meaning check
- Does the word fit the sentence's grammar?
- Does it match the intended tone rather than only the dictionary definition?
- Would a simpler synonym be clearer for the reader?
- Is there enough surrounding context to prevent ambiguity?
Source and review context
This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "only" in a final draft.
If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.
Before you rely on this definition
Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "only" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "only" with a nearby alternative so the final choice matches both meaning and reader expectation.
Compare nearby meanings
- Use synonyms when you need a softer, stronger, simpler, or more specific word.
- Use antonyms to check the boundary of the meaning and avoid accidental contrast.
- Use the example sentence to confirm the word behaves naturally in context.
- Keep the original wording when a replacement adds complexity without improving precision.
Definition decision workflow
1. Identify the role
Check whether "only" is acting as adj, adv, conj, noun, particle, slang in your sentence. A definition is only useful when the grammar matches the way the word is being used.
2. Test the nearest option
Compare it with "just" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.
3. Confirm with context
Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.
Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.
Final meaning check
Before publishing a sentence with "only", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.
When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.
Definitions
Noun
- 1 An only child.
"Sometimes, secondborns marry onlys and the conflicts are similar."
Adjective
- 1 Alone in a category. not-comparable
"He is the only doctor for miles."
- 2 Singularly superior; the best. not-comparable
"Motley's the only wear."
- 3 Without sibling; without a sibling of the same gender. not-comparable
"He is their only son, in fact, an only child."
- 4 Mere. not-comparable, obsolete
"I know some who wittingly have drawne both profit and preferment from cuckoldrie, the only name whereof is so yrksome and bail-ful to so many men."
Adjective
- 1 exclusive of anyone or anything else wordnet
- 2 being the only one; single and isolated from others wordnet
Adverb
- 1 Without others or anything further; exclusively. not-comparable
"In his submission to the UN, [Christof] Heyns points to the experience of drones. Unmanned aerial vehicles were intended initially only for surveillance, and their use for offensive purposes was prohibited, yet once strategists realised their perceived advantages as a means of carrying out targeted killings, all objections were swept out of the way."
- 2 No more than; just. not-comparable
"To DAD who only reared twelve children and To MOTHER who reared twelve only children"
- 3 As recently as. not-comparable
"c. 1924-1955, anonymous, The Urantia Book Only yesterday did I feed you with bread for your bodies; today I offer you the bread of life for your hungry souls."
- 4 Emphasizing something that is just or necessary. not-comparable
"It's only fair to let him borrow your kite, after you've had his toys all day."
- 5 Used to express surprise or consternation at an action. British, not-comparable
"She's only gone and run off with the milkman!"
Show 3 more definitions
- 6 Just, simply, undoubtedly. Ireland, informal, not-comparable
"Sure you're only gorgeous!"
- 7 Introduces a disappointing or surprising outcome that renders futile something previously mentioned. not-comparable
"They rallied from a three-goal deficit only to lose in the final two minutes of play."
- 8 Above all others; particularly. not-comparable, obsolete
"his most only elected mistress"
Adverb
- 1 and nothing more wordnet
- 2 without any others being included or involved wordnet
- 3 with nevertheless the final result wordnet
- 4 in the final outcome wordnet
- 5 as recently as wordnet
Show 1 more definition
- 6 except that wordnet
Conjunction
- 1 Introduces a clause with negative polarity, often one which upsets the listener's expectations.; Under the condition that; but. informal
"You're welcome to borrow my bicycle, only please take care of it."
- 2 Introduces a clause with negative polarity, often one which upsets the listener's expectations.; But, except; but in fact. informal
"I would enjoy running, only I have this broken leg."
Particle
- 1 Placed at the end of a sentence to emphasize that something is trivial, small, undemanding or deserving of belittlement. Singapore, Singlish
"Just need to replace the filter only."
Synonyms
All synonymsAntonyms
Example
"I can only wonder if this is the same for everyone else."
Common questions
What is a synonym for "only"?
Common synonyms include: just, merely, solely, a single, absolute, after a fashion.
How do you use "only" in a sentence?
I can only wonder if this is the same for everyone else.
How do you pronounce "only"?
Pronounced /ˈɑːn.li/.
Etymology
From Middle English oonly, only, from Old English ānlīċ, ǣnlīċ (“only; singular; solitary”), from Proto-Germanic *ainalīkaz. Cognate with obsolete Dutch eenlijk, German ähnlich (“similar”), Old Norse álíkr, Swedish enlig (“unified”). By surface analysis, on(e) + -ly. * Regarding the different phonological development of only and one, see the note in one.