clearly, distinctly, straight / visibly

a thing, occasion, circumstances, detail, particular / act of (word used for the nominalization of verbs, adjectives, or phrases)

be clear and distinct

solution, untie

divide; split; separate / untie; loosen; relax; remove / make clear; explain / understand; comprehend / opinion; explanation; solution

explanation; interpretation / (mathematics) solution / answer; reply (to a given question or problem)

thing / matter / fact

alternative/alternate solution/answer

(archaic) explanation (of meaning); interpretation

undoing a lock; unlocking