almost, nearly

be about to, be going to
He was so pale she thought he was going to faint.

at
He would faint at the sight of blood.

from
She fainted from lack of air.

with
She almost fainted with shock.

be, look, sound
His voice sounded faint and far away.

become, grow
The whispers grew fainter and fainter, then stopped altogether.

extremely, very
I can''t make out the number - it''s very faint.

rather

be, feel, look

extremely, very | almost | a bit, a little, quite
I was beginning to feel a little faint.

with
I was faint with hunger.