tac·ti·cian 
(tăk-tĭshən)
(tăk-tĭshən)n.
1. One who is skilled in the planning and execution of military tactics.
2. A clever maneuverer.
- constrainer
- constraint
- constrict
- constriction
- constrictive
- constrictively
- constrictive pericarditis
- constrictor
- constringe
- constringency
- constringent
- construal
- construct
- constructer
- constructible
- construction
- constructional
- constructionally
- constructionist
- construction paper
- constructive
- constructive interference
- constructively
- constructiveness
- constructivism