adj. 25B6; determiner
is there any cake left? : SOME, a piece/part/bit of.
it doesn't make any difference : THE SLIGHTEST BIT OF, a scrap/shred/jot/whit of, an iota of.
any job will do : WHICHEVER, no matter which, never mind which; informal any old.
25B6; pronoun you don't know any of my friends : A SINGLE ONE, (even) one; anyone, anybody.
25B6; adverb is your father any better? : AT ALL, in the least, to any extent, in any degree.