徐じょ行こう

じょ

こ

う

Common wordJLPTN1Freq.FrequencyTop 50,000

徐行する · noun or participle which takes 'suru'

Meanings

going slowly; reduced speed; slowing down

Used especially for vehicles moving at a speed that allows an immediate stop; common in traffic signs and driving instructions.

〈場ば所しょ〉で徐じょ行こうするto slow down at a place
この交こう差さ点てんでは徐じょ行こうしてください。
Please slow down at this intersection.
〈物もの〉が徐じょ行こうするfor a vehicle to move slowly
工こう事じ現げん場ばの近ちかくでは車くるまが徐じょ行こうする。
Cars slow down near construction sites.

減げん速そくN1
減速 is the general term for reducing speed of any kind, while 徐行 specifically means moving at a very slow, safely-stoppable pace, often required by traffic rules.
低てい速そく
低速 describes a low-speed state or setting (e.g. a gear or mode), whereas 徐行 describes the act of deliberately slowing a vehicle down for safety.

加か速そくN2
加速 means to speed up or accelerate, the direct opposite of 徐行's slowing down.
飛とばすN3
徐行する means to drive slowly or cautiously, the opposite of 飛ばす used for driving or running at high speed.

徐じょ々じょにN3
徐々に is an adverb meaning 'gradually' and can apply to any change over time, while 徐行 is a noun/verb specifically about a vehicle moving slowly for safety.

Compound of 徐 (slow, gradual) and 行 (go, travel).