v. & n. colloq.
--v.tr.
1. a promote or increase the reputation of (a person, scheme, commodity, etc.) by praise or advertising; push; increase or assist (boosted his spirits; boost sales). b push from below; assist (boosted me up the tree).
2 a raise the voltage in (an electric circuit etc.). b amplify (a radio signal).
--n.
1. an act, process, or result of boosting; a push (asked for a boost up the hill).
2 a an advertisement campaign. b the resulting advance in value, reputation, etc.
Etymology: 19th-c. US word: orig. unkn.