This is the 5815th most frequent Japanese word.
ばん
"ばん" (ban) means "number," "turn," or "order."
晩 (ban) is used here to mean 'evening', combined with ご飯 (gohan) to mean 'dinner'.
今日は、晩ご飯を食べる時間が遅くなります。
Today, the time to eat dinner will be late.
バンド (bando) includes the word バン (ban) to refer to 'band', which can mean a strip or binding.
彼の腕時計のバンドが壊れています。
His wristwatch band is broken.
バン (ban) in this case refers to 'van' as a vehicle used for transporting goods or passengers.