Translation guide
A person or thing that blocks or obstructs something. In Japanese, the translation depends heavily on what is being blocked—physical passage, progress, a view, a signal, or an action.
Something or someone physically in the way, preventing passage or access.
General term for a physical obstacle or obstruction. Neutral and widely used.
道路に障害物があった。
There was a blocker on the road.
A person who is in the way or a nuisance. Can be used for someone blocking progress or being an obstruction.
彼は会議でいつも邪魔者だ。
He's always a blocker in meetings.
Literally 'blockage' or 'plug'. Used for something that physically blocks a hole or passage.
排水管の塞ぎを取り除く。
Remove the blocker from the drain pipe.
A person who actively prevents someone from achieving something, often in a competitive or collaborative context.
Loanword from English, commonly used in sports (e.g., volleyball, American football) and sometimes in business contexts.
彼は優秀なブロッカーだ。
He is an excellent blocker.
A person who obstructs or interferes, often with a negative connotation. Used in formal or serious contexts.
彼はプロジェクトの妨害者と見なされた。
He was seen as a blocker of the project.
Same as above; can be used for a person who gets in the way of plans or progress.
An object or substance that prevents seeing or receiving signals.
Something that intercepts or cuts off, like a view or signal. Often used in technical contexts.
その建物は電波の遮断物になっている。
That building is a blocker of radio waves.
Something that blocks the view, like a screen or blindfold. More about visual obstruction.
塀が隣家からの目隠しになっている。
The fence acts as a blocker from the neighbor's view.
A program or feature that prevents certain content from being displayed or accessed.
Specifically an ad blocker. Very common term.
広告ブロッカーをインストールした。
I installed an ad blocker.
Short for ad blocker or content blocker in context.
General term for content blocker, used in browsers or apps.
コンテンツブロッカーを有効にする。
Enable the content blocker.
A player whose role is to block the opponent's moves.
Standard term in sports like volleyball and American football.
バレーボールでブロッカーが活躍した。
The blocker played well in volleyball.
Calling someone a 'blocker' in Japanese using a direct translation like ブロッカー can sound unnatural unless in a sports context. Use 邪魔者 or 妨害者 depending on the nuance.
She is a blocker to my plans.
このサイトはブロッカーを検出します。
This site detects blockers.