What does 辅助 (fǔ zhù) mean in English?

Card 615HSK 2010 Level 6615/2512
CARD615
PROGRESS24%
辅助
輔助
fǔ zhù
to assist; to aid; supplementary; auxiliary; subsidiary

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