blocker

Plural: blockers

Noun

One who obstructs or impedes progress.
a football player whose responsibility is to block players attempting to stop an offensive play
a class of drugs that inhibit (block) some biological process
Agent noun of block (“obstruct or prevent”); something that blocks something else.
One who blocks or impedes the movement of an opponent.
Agent noun of block (“obstruct or prevent”); something that blocks something else.
A defensive or low-scoring batter.
Agent noun of block (“obstruct or prevent”); something that blocks something else.
One who prevents another user from contacting them electronically.
Agent noun of block (“obstruct or prevent”); something that blocks something else.
An application that stops / impedes unauthorised access to a programme.
Agent noun of block (“obstruct or prevent”); something that blocks something else.
A bug or issue that prevents software from being released.
Agent noun of block (“obstruct or prevent”); something that blocks something else.
A gatekeeper who refuses the marketer access to the person they wish to contact.
Agent noun of block (“obstruct or prevent”); something that blocks something else.
Any of various medications that block (inhibit) the activity of a chemical messenger or its receptors, such as cardiac conduction modifiers (e.g., alpha-blockers, beta-blockers), gastric acid inhibitors (H₂ histamine blockers), puberty blockers, and others.
Agent noun of block (“obstruct or prevent”); something that blocks something else.
A close-fitting rectangular glove worn by a goalie in multiple forms of hockey.
Agent noun of block (“obstruct or prevent”); something that blocks something else.
A blocker bet.
Agent noun of block (“obstruct or prevent”); something that blocks something else.
A playing card, needed by one player, that is held by another.
A person who roughly shapes a diamond.
A person who blocks (stretches or moulds) hats.
A resident or member of a particular block.
Synonym of block ornament (“a cheap piece of meat of poor quality”).

Examples

a content blocker
an ad blocker
He was known as a master blocker, always preventing opponents from using bonus squares in Scrabble.

Origin / Etymology

From Middle English blocker, blokker, bloker, blokkere, equivalent to block + -er.

Synonyms

blocking agent, antagonist, block ornament, receptor antagonist, showstopper

Scrabble Score: 15

blocker: valid Scrabble (US) TWL Word
blocker: valid Scrabble Word in Merriam-Webster MW Dictionary
blocker: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 18

blocker: valid Words With Friends Word