Alternative form of フリーソフトウェア (furī sofutowea, “free software”) (software that can be freely copied and modified)

reuse

use, usage

Alternative form of ソフトウェア (sofutowea, “software”)

alteration, a change

to alter, to change

distribution

distribute

(obsolete, persists in some fossilized expressions) interrogative personal pronoun: who, whom

freedom, liberty / (rare) demand (for goods or services) / (euphemistic) a toilet, a restroom