What does 提高 (tígāo) mean in English?

Card 20NPCR Level 2120/73
CARD20
PROGRESS27%
提高
tígāo
improve; increase(Verb)
Click to reveal
← Previous↑ DeckNext →

Reveal: Click/Space/Enter/↑↓/w/s/j/k•Navigate: ←→/h/l/a/d