It shares a key with "!" (3)
I believe the answer is:
one
(Other definitions for one that I've seen before include "Identical; number" , "Single person or thing" , "joke" , "time" , "Leading cardinal" .)
I believe the answer is:
one
(Other definitions for one that I've seen before include "Identical; number" , "Single person or thing" , "joke" , "time" , "Leading cardinal" .)