Compare flak with other words:
flak vs. flan
flak vs. flask
flak vs. flaky
flak vs. flake
flak vs. flap
flak vs. flank
flak vs. flay
flak vs. fleak
falk vs. flak
flak vs. flam
flak vs. flax
flak vs. flaw
flag vs. flak
flak vs. flat
flak vs. ink