NOISE: Sound which is unwanted, either because of its effects on humans, its effect on fatigue or malfunction of physical equipment, or its interference with the perception or detection of other sounds. Sense perception
950 びっくりする: be surprised, be startled (casual): I was startled by a sudden noise. 1284 子供: child, kid: Kids were making a lot of noise in the train. 3453 物音: noise, sound: I heard a noise, so I went to look. 3454 雑音: noise: The background noise is so loud that I can't hear your voice. 3648 がやがや: noisily, loudly: The students are making a lot of noise. 3959 飛び上がる: fly up, jump up: I jumped up in surprise at the loud noise. 4410 混じる: be blended, get mixed (distinguishable): The voice on the phone was mixed with background noise. 5349 騒音: noise: The car noise is coming through the window. 7743 わいわい: excitedly; get excited: We all made a lot of noise reveling.