also: たとい
adverb
even if; no matter what; even though
Concessive adverb used with ても, でも, or とも to express 'even if' or 'no matter how'. Often paired with conditional or hypothetical clauses.
たとえ雨が降っても、行きます。
Even if it rains, I'll go.
たとえ失敗しても、挑戦する価値はある。
Even if you fail, it's worth trying.
たとえ誰が反対しても、私は自分の意見を曲げない。
No matter who opposes, I won't change my opinion.