This is the 2641st most frequent Japanese word.
昼間
Daytime.
昼間 indicates the general timeframe of daytime hours when there is typically high activity in the store.
昼間は店が賑わいます。
The store is bustling during the daytime.
昼間 here refers to the period of time during the day when it is bright outside, as opposed to nighttime.
昼間は公園で散歩をしました。
During the day, I took a walk in the park.
昼間 in this sentence denotes the time during daylight hours without specifying a particular part of the day.