What does "build up" mean?

To gradually increase in intensity (of emotions) When feelings accumulate over time until they become overwhelming.

How do you use "build up" in a sentence?

The tension had been building up for weeks. Stress can build up if you don't take breaks. Excitement was building up before the announcement.

Phrasal Verb BritishAmericanAustralian ★★★★★ Very Common Neutral

Meaning: To gradually increase in intensity (of emotions)

（情绪）逐渐积累、增强

Acumularse gradualmente (emociones)

（感情が）徐々に高まる、蓄積する

(감정이) 점차 고조되다, 쌓이다

When feelings accumulate over time until they become overwhelming.

指情感随时间逐渐累积，直到变得难以承受。

Cuando los sentimientos se acumulan con el tiempo hasta volverse abrumadores.

感情が時間とともに蓄積し、最終的に抑えきれなくなるほどになることを表します。

감정이 시간이 지남에 따라 축적되어 압도적이 될 때까지 쌓이다.

Base verb: build

Particle: up

Separable: No — the verb and particle stay together

The tension had been building up for weeks.
何週間も緊張が高まっていた
La tensión se había ido acumulando durante semanas
何週間も緊張が高まっていた
몇 주 동안 긴장감이 고조되고 있었다.
Stress can build up if you don't take breaks.
休憩を取らないとストレスが溜まる
El estrés puede acumularse si no descansas
休憩を取らないとストレスが溜まる
휴식을 취하지 않으면 스트레스가 쌓일 수 있다.
Excitement was building up before the announcement.
発表前に興奮が高まっていた
La emoción iba en aumento antes del anuncio
発表前に興奮が高まっていた
발표 전에 기대감이 고조되고 있었다.

Context: stress, anticipation

Tone: descriptive

Tension is building up
紧张情绪在升温
La tensión está aumentando
緊張が高まっている
긴장감이 고조되고 있어

From the gradual construction or accumulation of something.

Era: Modern

Generation: All ages

Social background: Universal