be, 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.

Faint is used with these nouns:
amusement, aroma, aura, birthmark, blur, blush, breeze, bruise, click, colour, cry, curl, disapproval, echo, flicker, flush, frown, gleam, glimmer, glow, grin, haze, hint, hiss, hope, hum, idea, image, light, line, memory, mist, moan, moonlight, murmur, noise, note, odour, outline, possibility, praise, pulse, recollection, reflection, resemblance, roar, rumble, rustle, scar, scent, shadow, shout, signal, smell, smile, sneer, sound, star, streak, suggestion, tinge, tinkle, tint, trace, trail, tremor, voice, whiff, whisper