とまる
to stay (overnight)
ホテルに泊まりました。
I stayed at a hotel.
Practice distinguishing this from similar verbs. Context clues in the sentence will guide you. Check if there's a transitive/intransitive pair — learning both together is very efficient. A fundamental N5 word — you'll use this in almost every conversation.
From the JLP Quiz question bank — the word in the form it is actually tested in.
交通機関が止まったので、泊まる___。
Answer: しかない
【文章④】 温泉旅館に泊まる際のマナーについてお知らせします。
Answer: 体をよく洗う
