(formal) friend

play, amuse oneself, enjoy oneself / spend one's time idle, do nothing / for an item not to be in use, be spare or idle

matter of taste

a hobby (activity done for enjoyment in spare time) / one's taste (set of preferences)

同じ: same; common, similar

holding, possession / wear, durability

continuative of 持つ

to hold, to carry something / to have, to possess / to hold up, to maintain

same, identical / common, similar

(colloquial) same, identical / (colloquial) common, similar