Translation guide
Describes involuntary, often repetitive muscle movements, ranging from minor tics to spasms. In Japanese, the most common and versatile word is ピクピク (pikupiku), which covers many types of twitching. Other terms specify the nature, location, or cause of the twitch.
まぶたがピクピクする。
My eyelid is twitching.
To describe a small, rapid, involuntary muscle movement, like an eyelid or muscle twitch.
An onomatopoeic adverb/verb describing light, repetitive twitching or flickering. Very common for eyelid or muscle twitches. Often used with する.
まぶたがピクピクする。
My eyelid is twitching.
太ももの筋肉がピクピクしている。
The muscle in my thigh is twitching.
A medical/formal term for spasm, convulsion, or cramp. Can be used for more severe or sustained twitching, but is broader than just 'twitching'.
顔の筋肉が痙攣している。
The facial muscles are twitching/spasming.
Refers to a cramp or twitch, often with a connotation of stiffness or distortion. Used for facial twitching or cramps.
口元が引き攣る。
The corner of the mouth twitches.
To describe a habitual or nervous twitch, like an eye twitch from stress or a facial tic.
From English 'tic'. Refers to a nervous tic, often a repetitive, involuntary movement. Commonly used for eye blinking or facial grimacing.
彼はストレスでチックが出ている。
He has a nervous twitch from stress.
Describes a single, sudden twitch or jerk, often from surprise or a nervous reaction. ピクッ is a variant of ピクピク emphasizing a momentary action.
驚いて肩がピクッとした。
My shoulder twitched in surprise.
To describe the twitching of an animal's ears, tail, whiskers, or an insect's antennae.
Same as for humans, widely used for animals. E.g., a rabbit's nose or a cat's ears twitching.
猫の耳がピクピク動いている。
The cat's ears are twitching.
Similar to ピクピク but often implies a softer, more subtle twitching, like a rabbit's nose. Can also describe sniffing.
To describe a single, involuntary jerk of a body part, like a leg jerk when falling asleep.
Describes a sudden, startled jerk or twitch of the whole body or a limb. Stronger than ピクッ.
寝入りばなに体がビクッとなった。
My body twitched/jerked as I was falling asleep.
Similar to ピクッとする but slightly softer or more prolonged. Often used for a single twitch of a muscle.
指がピクンと動いた。
My finger twitched.
ピクピク describes continuous, light twitching. ビクッ is a single, strong, startled jerk. ピクッ is a single, small twitch. Choose based on duration and intensity.
まぶたがピクピクする（continuous）
Eyelid twitching repeatedly
大きな音にビクッとした（single jerk）
Twitched/jerked at the loud noise
口元がピクッと動いた（single small twitch）
The corner of the mouth twitched once
ウサギの鼻がひくひくしている。
The rabbit's nose is twitching.