fillip

n 1 stimulus or incentive; encouragement刺激; 激励; 鼓励: an advertising campaign to give a much-needed fillip to sales 刺激销路必不可少的广告运动. 2 quick flick made by pressing a finger against the thumb and then releasing it suddenly 弹指.

filch, file, filet, filial, filibuster, filigree, filing, filing clerk (US file clerk), filings, Filipino, fill, fill in, fill in /out, fill out, fill up, fill with, filler, fillet, filling, filling station, filly, film, film show, film star, film test, film-strip, filmy, filter, filter-paper, filter-tip, filter-tipped, filth, filthily, filthiness, filthy, filtrate, filtration, fin, finable, final,