To Phase

1. (with in or out) To begin—if construed with "in"—or to discontinue—if construed with out—(doing) something over a period of time (i.e. in phases).
2. Obsolete form of faze.^[1]
3. (genetics, informal, transitive) To determine haplotypes in (data) when genotypes are known.
4. To pass into or through a solid object.
5. (science fiction) To use a phaser.