- to pursue some special line of study, work, etc.; have a specialty: The doctor specializes in gastroenterology.
- (of an organism or one of its organs) to be adapted to a special function or environment.
- to render special or specific; invest with a special character, function, etc.
- to adapt to special conditions; restrict to specific limits.
- to restrict payment of (a negotiable instrument) by endorsing over to a specific payee.
- to specify; particularize.
- to train in or devote oneself to a particular area of study, occupation, or activity
- to cause (organisms or their parts) to develop in a way most suited to a particular environment or way of life or (of organisms, etc) to develop in this way
- to modify or make suitable for a special use or purpose
- to mention specifically; specify
- to endorse (a commercial paper) to a specific payee
