personal, private / secret

(formal) first-person singular pronoun: I, me

Alternative spelling of 私達 (“we; us”)

private; mine

sphere, globe, orb / (baseball) pitch / (slang, electronics) vacuum tube, valve

ball / bulb (as in a light bulb) / (slang, electronics) vacuum tube, valve / (baseball) pitch

spherical object / ball

heat / temperature / fever / mania / passion

(informal) passion; mania; fever (towards an activity or topic)

unnecessary