Question

what part of the word means "invalid" means not ?​

Answer 1

Answer:

"In."

Explanation:

"In" means "not" and valid means "true" or "correct." Adding "in" makes it mean "not."

Answer 2

Answer:

the prefix in-

Explanation:

the word valid means correct or "good" when you add the prefix/suffix in- it makes it "not"