There is no such word as “tought” in common usage today. Taught is correct both as the past tense and past participle form of the verb “teach.” However, “taught” does have some homophones — words we pronounce the same way — in “taut” and “tort.”

What tought means?

Definition of "tought" [tought]

A Middle English form of tight, taut.

Is it taught or learned?

As verbs the difference between taught and learned

is that taught is (teach) while learned is (learn): taught or learned can be (learn).