Understood.

sharing a room (accommodation)

mutual, reciprocal, with one another / appearance, look

nature, personality / fate, destiny / a habit, custom, or practice / the good and bad of a person; especially, one's faults

minister of state

appearance, how something looks / an aspect of something / (grammar) grammatical aspect / (physics) a phase, as of matter / (ikebana) the central supporting branch of an ikebana arrangement

fatigue

to feel run down, to be fatigued

strengthens the prefixed adjective or adjectival noun

one who does the previous word's action: -ist, -er / (board games) counter for moves in shogi, go, etc.