only
on-ly
conjunction
Introducing a reservation or condition; except that (informal).
"It's a good plan, only it's expensive."
adverb
No more than; just; indicating a single quantity or instance.
"I only have five pounds left."
adjective
Being the single one of its kind; sole or unique.
"She was their only child."
Thesaurus
Synonyms: exclusive, alone, solely, entirely, exclusively, just, simply, merely, but