monopolize

verb (used with object), mo·nop·o·lized, mo·nop·o·liz·ing.

1. to acquire, have, or exercise a monopoly of.
2. to obtain exclusive possession of; keep entirely to oneself: Children monopolize one’s time.

verb (tr)

1. to have, control, or make use of fully, excluding others
2. to obtain, maintain, or exploit a monopoly of (a market, commodity, etc)

v.1610s; see monopoly + -ize. Figurative use from 1620s. Related: Monopolized; monopolizing; monopolization.