Ichidan verb, Transitive verbto memorize; to memorise; to commit to memory; to learn by heart; to bear in mind; to remember · to learn; to pick up; to acquire · to feel

Godan verb with 'u' ending, Transitive verbto think; to consider; to believe; to reckon · to think (of doing); to plan (to do) · to judge; to assess; to regard

Noun, Suru verb, Transitive verbguess; speculation; supposition

Nounhypothesis; speculation; surmise; conjecture

Noun(a) thought one will never forget; something one will always remember