ˈleg-up noun give somebody a leg-up informal a) UPto help someone to get up to a high place by joining your hands together so they can use them as a step 〔双手交叉〕让某人踩着登高
b) British EnglishBrEHELP to help someone succeed in their job 助某人一臂之力
give somebody a leg-up• Joining the Visa network would give it the leg-up it needs.