Noah Webster's Dictionary 1. (n.) A natural or acquired disposition or capacity for a particular purpose, or tendency to a particular action or effect; as, oil has an aptitude to burn. 2. (n.) A general fitness or suitableness; adaptation. 3. (n.) Readiness in learning; docility; aptness.

Multi-Version Concordance Aptitude (1 Occurrence) Daniel 1:4 youths in whom was no blemish, but well-favored, and skillful in all wisdom, and endowed with knowledge, and understanding science, and such as had ability to stand in the king's palace; and that he should teach them the learning and the language of the Chaldeans. (See NIV)