Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings

to use; by means of; with; using the tool or method introduced

a single unit of language with a fixed meaning and pronunciation that can be used independently; term; vocabulary item

to do harm to; to injure; to cause trouble for; to result in someone suffering a loss

(bound form) to record; to write down