I've Had It! is an expression used to express frustration, exhaustion, or exasperation. The crossword solutions for this term are ENOUGH (6 letters), NOMORE (6 letters), and ENOUGHISENOUGH (14 letters). ENOUGH is a word used to indicate that something is sufficient or satisfactory, while NOMORE is a contraction of the phrase 'no more' which is used to indicate that something has reached its limit. ENOUGHISENOUGH is a phrase which combines the two words to emphasize the sentiment of having had ENOUGH.