7. (conj.)only but (introducing a single restriction, restraining circumstance, or the like): I would have gone, only you objected.
8. only Older Use. except; but: Only for him you would not be here.
9. only very; extremely.
Etymology: (bef. 900; ME; OE ānlich, æmacr;nlich. See one , -ly)
Definition of 'Only'
Princeton's WordNet
1. (adj)lone(a), lonesome(a), only(a), sole(a), solitary(a) being the only one; single and isolated from others "the lone doctor in the entire county"; "a lonesome pine"; "an only child"; "the sole heir"; "the sole example"; "a solitary instance of cowardice"; "a solitary speck in the sky"
2. (adverb)alone(p), only exclusive of anyone or anything else "she alone believed him"; "cannot live by bread alone"; "I'll have this car and this car only"
3. (adverb)merely, simply, just, only, but and nothingmore "I was merely asking"; "it is simply a matter of time"; "just a scratch"; "he was only a child"; "hopes that last but a moment"
4. (adverb)entirely, exclusively, solely, alone, only without any others being included or involved "was entirely to blame"; "a school devoted entirely to the needs of problem children"; "he works for Mr. Smith exclusively"; "did it solely for money"; "the burden of proof rests on the prosecution alone"; "a privilege granted only to him"
5. (adverb)only with nevertheless the finalresult "He arrived only to find his wife dead"; "We won only to lose again in the next round"
6. (adverb)only in the finaloutcome "These news will only make you more upset"
7. (adverb)only except that "It was the same story; only this time she came out better"
8. (adverb)only, only if, only when never except when "call me only if your cold gets worse"
9. (adverb)only as recently as "I spoke to him only an hour ago"
1. (adverb)only not more than It'll only take me fifteen minutes.; I only have $200.
2. only nothing, nowhere, or no one else This area is for children only.; things that could only happen on TV
3. only no better, no worse, no more interesting, etc. than; = just I thought it was Dad, but it was only some guy that looked like him.
4. only indicates sth happened recently; = just He only left a few minutes ago.; I've only just found out what happened.
5. (adjective)only only just not having any other things or people of the samekind Katie was the only friend she had.; The cellphone was her only way of communicating.
6. only the only thing is used to say that there may be a problem It's a great camera - the only thing is it's too small.
7. (conjunction)only indicates the statement just made is not completely true; = except Your coat is just like mine, only it's blue.
Definitions of Only 
Afrikaans: enigste
Arabic: وَحيد
Bulgarian: единствен
Brazilian: único
Czech: jediný
German: einzig
Danish: ene-; eneste
Greek: μόνος, μοναχός, μοναδικός
Spanish: único
Estonian: ainus
Farsi: تنها
Finnish: ainoa
French: unique, seul
Hebrew: יָחִיד
Hindi: केवल, अकेला
Croatian: sam, jedini
Hungarian: egyetlen
Indonesian: satu-satunya
Icelandic: einka-; eini, hinn eini
Italian: solo, unico
Japanese: 唯一の
Korean: 유일한
Lithuanian: vienintelis
Latvian: vienīgais
Malay: tunggal
Dutch: enig
Norwegian: ene-, eneste
Polish: jedyny
Persian: تنها
Pashto: يوازى
Portuguese: único
Romanian: singur; unic
Russian: единственный
Slovak: jediný
Slovenian: edini
Serbian: jedinac
Swedish: enda
Thai: ที่เป็นลูกโทน
Turkish: tek, biricik
Taiwanese: 唯一的
Ukrainian: тільки, лише
Urdu: صرف، فقط
Vietnamese: chỉ
Chinese: 唯一的
