| Principal Translations |
| act⇒ vi | (behave) | actuar⇒ vi |
| | | comportarse⇒ v prnl |
| | | portarse⇒ v prnl |
| | I thought he was ill, as he was acting strangely. |
| | Pensé que estaba enfermo porque actuaba de manera extraña. |
| act vi | (take action) | actuar⇒ vi |
| | | tomar acciones loc verb |
| | When I have spoken to my advisors, I will act. |
| | Actuaré una vez haya hablado con mis asesores. |
| act vi | (pretend to be) | fingir⇒ vtr |
| | He acted ill, as he didn't want to go to school. |
| | Fingió estar enfermo porque no quería ir a la escuela. |
| act n | (deed) | acción nf |
| | The rescue was the act of a brave man. |
| | El rescate fue la acción de un hombre valiente. |
| act n | (pretence) (fingimiento) | actuación nf |
| | | teatro nm |
| | Her apparent calmness was all an act. |
| | Su calma aparente era pura actuación. |
| | Su calma aparente era puro teatro. |
| act n | (theatre: division) | acto nm |
| | The balcony scene happens in the second act. |
| | La escena del balcón ocurre en el segundo acto. |
| act n | (law: statute) (en sentido general) | legislación nf |
| | | ley nf |
| | There is an Act which outlaws such behaviour. |
| | Existe una legislación que declara ilegal tal comportamiento. |
| act n | (performance) | número nm |
| | The second act was a mime artist. |
| | En el segundo número había un mimo. |
| Acts n | (book of Bible) | Hechos n propio mpl |
| | Acts is the fifth book of the New Testament. |
| | Los Hechos es el quinto libro del Nuevo Testamento. |
| Additional Translations |
| act n | (performer) | artista n común |
| | The first act of the evening was a young comedian we had never heard of. |
| | El primer artista de la noche fue un joven comediante del que nunca habíamos escuchado. |
| act vi | (operate) | funcionar⇒ vi |
| | Pressing the pedal will make the brakes act. |
| | Apretar el pedal hará que los frenos funcionen. |
| act for [sb] vi | (substitute) | representar⇒ vtr |
| | | actuar en nombre de loc verb |
| | I will have to act for my absent brother. |
| | Tendré que representar a mi hermano ausente. |
| act [sth]⇒ vtr | (perform) | representar⇒ vtr |
| | | interpretar⇒ vtr |
| | The troupe will act a few scenes from Shakespeare. |
| | La compañía representará algunas escenas de Shakespeare. |
Locuciones verbales
act | acting |
| act on [sth] vtr phrasal insep | (respond) | reaccionar ante vi + prep |
| | | reaccionar a vi + prep |
| | Olga acted on the email she received. |
| | Olga reaccionó ante el correo electrónico que recibió. |
| act on [sth] vtr phrasal insep | (have effect) | actuar⇒ vi |
| | The engraving was the result of the acid acting on the metal. |
| | El grabado fue el resultado del ácido al actuar sobre el metal. |
act [sth] out,
act out [sth] vtr phrasal sep | (enact, perform) | actuar⇒ vtr |
| | | representar⇒ vtr |
| | Edward and Diana acted out the first scene of the play. |
| | On the training course, employees were asked to work in pairs and act out common workplace scenarios. |
| | Eduardo y Diana actuaron en la primera escena de la obra. |
| act out vi phrasal | US (misbehave) | portarse mal v prnl + adv |
| | | comportarse mal v prnl + adv |
| | The children are acting out. |
| | Los niños se están portando mal. |
| act up vi phrasal | UK, informal (child: misbehave) | tener una rabieta loc verb |
| | | portarse mal loc verb |
| | Why do children always wait to be in public to act up? |
| | ¿Por qué los niños esperan a estar en público para tener una rabieta? |
| act up vi phrasal | informal (machine: malfunction) | no andar bien loc verb |
| | The TV is acting up, but I think it's just a loose wire. |
| | El televisor no anda bien, pero creo que es nada más por un cable que está flojo. |
| act up vi phrasal | UK (stand in for [sb] more senior) | tomar el cargo loc verb |
| | Lily was asked to act up for the six months that her manager would be away. |
| | Le pidieron a Lily tomar el cargo de su gerente por seis meses. |
| act upon [sth] vtr phrasal insep | (do [sth] in response) | actuar por vi + prep |
| | Harry acted upon Alice's request. |
| act upon [sth] vtr phrasal insep | (have an effect on) | actuar sobre vi + prep |
| | The drug acts upon the nervous system. |