Venture capital is money, technical, or managerial expertise provided by investors to startup firms with long-term growth potential. The meaning of VENTURE is to proceed especially in the face of danger. How to use venture in a sentence. Venture definition: an undertaking involving uncertainty as to the outcome, especially a risky or dangerous one.. See examples of VENTURE used in a sentence. Learn the meaning and usage of the word venture as a noun and a verb, with synonyms, idioms, and related terms. Find out how to venture into something, to stake something, or to express something at risk.