sign

a mark or shape that has a particular meaning and is used to give information, warn people about something dangerous, etc.

señal, indicación

• traffic sign
• road sign

Collocations stop sign · warning sign

• There are lots of warning signs on the road.

  Hay muchas señales de advertencia en la carretera.

to write your name on a document to show that you agree with it or have read and understood it

firmar, aprobar

• sign something
• sign for something

Collocations sign a contract · sign a petition

• I need to sign this agreement.

  Necesito firmar este acuerdo.

a symbol or gesture that represents something else, especially in a language used by deaf people

señal, gesto

• sign language

Collocations American Sign Language (ASL) · British Sign Language (BSL)

• She communicates using sign language.

  Ella se comunica usando lenguaje de señas.

to be a symbol or indication of something, especially in medicine

indicar, mostrar

• sign of sth

Collocations signs of illness · signs of improvement

• There are clear signs that the economy is improving.

  Hay claras señales de que la economía está mejorando.

to agree to do something or join an organization, especially by writing your name on a form

firmar, unirse

• sign up for sth

Collocations sign up for a course · sign up to join an organization

• I signed up for the newsletter.

  Me inscribí en el boletín informativo.

to agree to do something or join an organization, especially by writing your name on a form

firmar, unirse

• sign up for sth

Collocations sign up for a course · sign up to join an organization

• I signed up for the newsletter.

  Me inscribí en el boletín informativo.

to agree to do something or join an organization, especially by writing your name on a form

firmar, unirse

• sign up for sth

Collocations sign up for a course · sign up to join an organization

• I signed up for the newsletter.

  Me inscribí en el boletín informativo.

to agree to do something or join an organization, especially by writing your name on a form

firmar, unirse

• sign up for sth

Collocations sign up for a course · sign up to join an organization

• I signed up for the newsletter.

  Me inscribí en el boletín informativo.