it is correct to say an honest, as in "make an honest man outta him!"
Yes. Onomatopoeia is a form of sound or 1-word exclamation such as, boom or ouch! In your case. To be honest with you, ouch is not an onomatopoeia, but a form of onomatopoeia. Sorry to correct you.
Yes
To get the correct account!
Fair is correct for this usage.
Honest is an adjective, since it modifies a noun. Examples: 'honest man,' 'honest truth.' The noun form is 'honesty.'
The likely word is "honored" (praised or congratulated).
The noun form of the adjective honest is honestness.A related noun is honesty.
The correct spelling of the adjective is sincere(truthful, honest, forthright).
In My Humble/Honest Opinion.
The correct possessive form is Junior's.
The noun form of the adjective honest is honestness.A related noun is honesty.
more sincere -- James is more sincere than Melissa most sincere -- James is the most sincere person I know.