The kanji 援 means "to support," "to assist," "to aid," or "to help." It conveys the idea of offering help, providing assistance, or lending support to someone or something. It implies a sense of encouragement, backing, and providing resources or strength when needed. This support can be physical, emotional, or in the form of resources.

・On-yomi (音読み): エン (en) ・Kun-yomi (訓読み): たす (tasu - to help, assist)

⚫︎支援（しえん） Translation: Support; assistance; aid ⚫︎応援（おうえん） Translation: Cheer; support; encouragement ⚫︎援助（えんじょ） Translation: Assistance; aid; support

The kanji 援 is a 形声文字 (keishō moji), which means it's a character that combines a semantic component (a meaning component) and a phonetic component (a sound component). The left side is 手 (te), meaning "hand" or "to do." The right side is 爰 (en), which provides the sound of the character. Together, it suggests the idea of using the "hand" or taking action to "assist" or "support". The etymology comes from the action of lending a hand to someone.