To Support
transitive verb, ichidan verb
This word consists of kanji with hiragana attached. Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means support so the verb version is to support.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you:
You need to support someone. In order to support them, you grab two saws. One saw and another saw. It's a saw saw (ささ) combination good enough to do all the supporting you need - and maybe cut some supports too.
社会を支える
to support society
体を支える
to support someone's body
生活を支える
to support one's livelihood
スタッフは、これからも社長を支える考えだ。
The staff's thought is to continue supporting the president.
父は母や私を支えるために毎日仕事へ行った。
My father went to work every day to support my mother and me.
この石に、これ以上大きな木を支える力はありません。
This rock does not have the power to support a tree any bigger than this.