• 今晩こんばん — this evening
• 晩ばんご飯はん — dinner
• 毎晩まいばん — every night
• 晩年ばんねん — later years of life
• 晩秋ばんしゅう — late autumn
• 晩婚ばんこん — late marriage
• 晩成ばんせい — late success
• 晩酌ばんしゃく — evening drink

The kanji 晩 consists of 日 (sun) and 免 (a component also used phonetically). It originally represented the time when the sun sets — twilight or nightfall.

It conveys a sense of lateness — whether in the day (evening), in life (later years), or in accomplishment (late success).

今晩こんばんは 寒さむくなりそうです。
It looks like it will get cold tonight.

晩ばんご飯はんは 何なににしますか？
What shall we have for dinner?

“ばん” is used in many expressions like “こんばん” (tonight), “まいばん” (every night), and “ばんごはん” (dinner). It usually appears in time-related contexts.