The adj only has 2 senses (no senses from tagged texts)
1. lone, lonesome, only, sole, solitary -- (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. alone, 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")
Overview of adv only
The adv only has 7 senses (first 6 from tagged texts)
1. (258) merely, simply, just, only, but -- (and nothing more; "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")
2. (226) 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")
3. (13) only -- (with nevertheless the final result; "He arrived only to find his wife dead"; "We won only to lose again in the next round")
4. (6) only -- (in the final outcome; "These news will only make you more upset")
5. (4) only -- (except that; "It was the same story; only this time she came out better")
6. (2) only, only if, only when -- (never except when; "call me only if your cold gets worse")
7. only -- (as recently as; "I spoke to him only an hour ago")