caution (EN)
noun, verb

noun “caution”

sg. caution, pl. cautions or uncountable
  1. care taken to avoid danger or risks
    Caution is required when you walk on the icy sidewalk.
  2. a warning
    Before you start the hike, let me give you a word of caution.
  3. in law, a formal warning given instead of taking someone to court for a small wrongdoing
    The police officer gave him a caution instead of taking him to court for the minor offense.
  4. in football (soccer), a yellow card shown to a player as a warning for breaking the rules
    The referee gave the player a caution for his dangerous tackle.

verb “caution”

caution; he cautions; past cautioned, part. cautioned; ger. cautioning
  1. to alert; to tell someone to be careful
    The teacher cautioned the students to pay attention when crossing the busy street.
  2. (in the UK) to officially tell someone that what they say can be used in court as evidence against them
    The police officer cautioned the suspect, informing him that his statements could be used in court.
  3. (in the UK) to officially warn someone that they will face punishment if they repeat a wrongdoing or illegal action
    The judge decided to caution him for his first offense instead of giving him a harsher sentence.
  4. in football (soccer), to officially give a player a yellow card as a penalty for breaking the rules
    The referee cautioned the player for a dangerous tackle.