1. adjective /ˈəʊn.li,ˈoʊn.li/
a) Alone in a category.
He is the only doctor for miles.
b) Singularly superior; the best.
The only people in the stadium were the fans: no players, coaches, or officials.
2. adverb /ˈəʊn.li,ˈoʊn.li/
my heart is hers, and hers only
b) no more than; just
if there were only one more ticket!
3. conjunction /ˈəʊn.li,ˈoʊn.li/
a) Under the condition that; but.
I would enjoy running, only I have this broken leg
b) However.
See Also: if only
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