% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for you know what...

AnswerClue
KNOWSIs familiar with
KNOWBe confident of
KNOW__-how
KNOWHave no doubt
KNOWBe confident about
KNOWSHas no doubt of
KNOWNot just suppose
KNOWDon't have to guess
KNOWPerceive as fact
KNOWNot just assume
KNOWDon't have to ask
KNOWHave memorized
KNOWBe in the loop
KNOWHave no doubt about
KNOWSRecognizes
KNOWMore than suspect
KNOWBe positive
KNOWBe absolutely sure
KNOWHave the right answer
KNOWComprehend
KNOWGrasp
KNOWMore than think
KNOWBe certain of
KNOWSUnderstands
KNOWBe certain
KNOWINGShrewd
KNOWSIs positive
KNOWSDoesn't have to guess
KNOWSIs acquainted with
KNOWBe intimate with
KNOWSIs aware of
KNOWHave down
KNOWSMore than just thinks
KNOWWhad'Ya ___? (radio show)
KNOW___-it-all
KNOWDon't have to assume
KNOWSHas met before
KNOWHave no doubts
KNOWI Need to ___ (Marc Anthony hit)
KNOWBe familiar with
KNOWFeel in one's bones
KNOWBe aware of
KNOWUnderstand, as a language
KNOWSHas memorized
KNOWBe sure of
KNOWSHas the 411
KNOWSee 17-Across
KNOWSHas in mind?
KNOWHave by heart
KNOWSIsn't just guessing