圧力を加える

You use this when describing power dynamics.

It usually involves a person with more power.

Think of a boss or a government.

You can use it with the particle に.

For example, AがBに圧力を加える.

This means A is pressuring B.

It sounds quite serious and direct.

Use it when the situation feels heavy.

Use it in business meetings or news.

It fits perfectly for political discussions.

Use it when a company forces a supplier.

It works for pushy sales tactics too.

You might use it when talking about parents.

Specifically, when they push kids to study.

It is great for describing unfair situations.

Use it when someone is being a bully.

Do not use it for physical therapy.

For a massage, use 圧をかける.

Do not use it for bicycle tires.

For air pressure, use 空気を入れる.

It is too heavy for light suggestions.

If a friend suggests a movie, don't use it.

That would sound like they are a dictator.

Keep it for real, significant influence.

Japan values harmony and 'reading the air'.

Direct pressure is often seen as rude.

However, silent pressure is very common.

This is called 忖度 (sontaku) or guessing wishes.

圧力を加える describes the more overt kind.

It implies someone is breaking the social peace.

In Japanese history, power was often subtle.

Using this phrase highlights a lack of subtlety.

You will often hear 圧力をかける.

This is almost identical in meaning.

かける feels a bit more active.

加える feels like a formal 'addition' of force.

You might also see プレッシャーを与える.

This is used more for mental stress.

圧力 is usually about external control.