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to stand up; to get up; to rise (to one's feet)
to recover; to regain one's energy; to rise
to (stand up and) take action; to rise up (against); to start (doing)
to rise (from a crouch) and make the initial charge
to start up; to boot up
to be established; to be set up; to be formed; to be created
to rise (of steam, smoke, etc.)
彼は椅子からゆっくり立ち上がった。
He slowly stood up from the chair.
彼女が突然立ち上がって皆を驚かせた。
She suddenly stood up and surprised everyone.
観客は国歌に敬意を表し立ち上がる。
Spectators stand up to show respect for the national anthem.