What is the meaning of Monster?

A terrifying and dangerous creature, especially one of an imaginary or mythical kind.

A cruel, heartless, or antisocial person, especially a criminal.

A badly behaved person, especially a child; a brat.

A prodigy; someone very talented in a specific domain.

A creature of unnatural or highly unusual shape or form (which makes a frightening or unpleasant impression).

1. Something very or unusually large.

   Something very or unusually large.

   A deformed animal or person (especially, a severely deformed one); in previous centuries often taken as an ill omen at the time of its birth. (Offensive when applied to humans in modern usage.)

   A disabled person.

   A bizarre or whimsical creature.

   A non-player character that player(s) fight against in role-playing games; a mob

   Very large; worthy of a monster.

   Great; very good; excellent.

   To make into a monster; to categorise as a monster; to demonise.

   To behave as a monster to; to terrorise.

   To harass.

   To play (a series of) non-player characters as directed, without having the responsibility of organising the game itself; generally not limited to playing literal monsters or hostile combatants.

   (Can we verify this sense?) To condemn or reprimand.

   a monster, terrifying and dangerous creature

   an extremely antisocial person, especially a criminal

   sample; small, representative quantity of a substance or material, as used for analysis or selection

   inflection of monsteren:

   1. first-person singular present indicative
   2. (in case of inversion) second-person singular present indicative
   3. imperative

   first-person singular present indicative

   (in case of inversion) second-person singular present indicative

   imperative

   a monster (similar senses to English)

   a Monster Energy drink

   Source: wiktionary.org