万一, まんいち, ばんいち, まんいつ, ばんいつ
1. (unlikely event of) emergency, the worst(-case scenario), 10000 to 1
Adverb
2. (if) by some chance, by some possibility, in the unlikely event that
万一彼がこちらへきたらすぐ知らせます。
留守中, るすちゅう
during absence from home
私の留守中に誰か来ましたか。
に
Particle
1. at (place, time), in, on, during
2. to (direction, state), toward, into
3. for (purpose)
4. because of (reason), with
5. by, from
誰か, だれか
Pronoun
someone, somebody
「誰か車の中にいるのですか」「トムがいます」
が
Particle
1. indicates sentence subject (occasionally object)
2. indicates possessive (esp. in literary expressions)
Conjunction
3. but, however, still, and
after the volitional form of a verb
4. regardless of, whether (or not)