Definition of hijack for English Language Learners. : 1  to stop and steal (a moving vehicle) : 2  to steal (something) from a moving vehicle that you have stopped. : 3  to take control of (an aircraft) by force.
Dictionary entry overview: What does reconstitute mean? â¢ RECONSTITUTE (verb) The verb RECONSTITUTE has 1 sense: 1. construct or form anew or provide with a new structure Familiarity information: RECONSTITUTE used as a verb is very rare.
Definitions for astuteÉËstut, ÉËstyut. astute, sharp, shrewd(adj) marked by practical hardheaded intelligence. a smart businessman; an astute tenant always reads the small print in a lease; he was too shrewd to go along with them on a road that could lead only to their overthrow. astute(Adjective)