sit up

uncountable · intransitive · phrasal, no object

A phrasal verb used to indicate the act of moving from a lying or slouching position to an upright sitting position, or to suddenly become alert or attentive.

ruФразовый глагол, используемый для обозначения действия по переходу из лежачего или сгорбленного положения в сидячее прямо, или для внезапного проявления бдительности или внимания.esVerbo frasal que indica pasar de estar tumbado o encorvado a una posición sentada y erguida, o erguirse repentinamente mostrando alerta o atención.frVerbe à particule désignant l'action de passer d'une position allongée ou voûtée à une position assise bien droite, ou de se redresser soudainement par vigilance ou attention.dePartikelverb, das die Bewegung aus dem Liegen oder einer gekrümmten Haltung in eine aufrechte Sitzposition bezeichnet oder ein plötzliches Wachwerden bzw. Aufmerksamwerden ausdrückt.ptVerbo frasal usado para indicar a ação de passar da posição deitada ou curvada para a posição sentada ereta, ou para descrever um súbito estado de alerta ou atenção.zh动词短语，指从躺卧或弯腰的姿势转为坐直，也指突然警觉或注意起来。arفعل مركب يعني الانتقال من وضع الاستلقاء أو الانحناء إلى الجلوس منتصبًا، أو التنبّه فجأة والانتباه.

1. Move to an upright position formal

   To change from a lying or slouching position to a sitting position.

   • He sat up in bed when he heard the noise.
   • The baby is learning to sit up on her own.
   • She sat up slowly after lying down for a nap.

   ruСесть прямоesIncorporarsefrSe redresser en position assisedeSich aufrichtenptSentar-se eretozh坐起来arالجلوس مستقيماً

   Antonyms: lie downreclineslouchsprawl

2. Stay awake late informal

   To remain awake and not go to bed, often waiting for something.

   • We sat up late watching movies.
   • She sat up waiting for her son to come home.
   • I sat up all night to finish the report.

   ruНе ложиться спатьespermanecer despierto hasta tardefrrester éveillé tarddeWach bleibenptFicar acordado até tardezh熬夜等待arالسهر

   Synonyms: stay up

   Antonyms: retiresleep

3. Become alert or attentive informal

   To suddenly become more alert or pay closer attention.

   • The news made everyone sit up and take notice.
   • His speech made the audience sit up and listen.
   • The sudden noise made the dog sit up and bark.

   ruНасторожитьсяesponerse alertafrSe redresser (par l'attention)deAufmerksam werdenptFicar alertazh警觉起来arالانتباه والاستنفار

   Synonyms: alertbrightenperk uprousetake noticewake up

• sat up past participle
• sat up past simple
• sitting up present participle
• sits up third person singular

Base verb: sit