i Register
In some senses, ref is marked as informal, UK. Watch for register when choosing this word.
ADJ.
bad, blind, close, uproarious
The close ref made a terrible decision that cost us the match.
VERB + REF
travelling, yelled
The angry coach yelled at the ref for making a terrible call during the second half.
REF + NOUN
tv
The ref made a controversial call during the match that upset both teams.
PREP.
after, through
The manager checked the rulebook after ref made the controversial penalty call.