space, area, room / (typography) space (a piece of type used to separate words) / (typography) an interglyph space (space between glyphs) / outer space

needed, necessary

need, necessity

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

unused or unusable space, usually in a house

(graphical user interface) a workspace

necessity (quality or state of being necessary, unavoidable, or absolutely requisite)

unnecessary