ADJ
- major
- international, national, world
- British, European, etc.
- swimming, tennis, etc.
VERB + CHAMPIONSHIP
- hold
- The championships are to be held in Rome
- compete in, take part in
- Over thirty children will compete in the swimming championships
- win
- She has won four major championships in the last five years
- lose
CHAMPIONSHIP + NOUN
- final, game, match, race
- title, winner
PREP
- at a/the ~
- I saw him play at last year's tennis championship
- in a/the ~
- the teams in the championship
VERB + CHAMPIONSHIP
- hold
- Who holds the championship at the moment?
- take, win
- He's won the championship for the third time in a row
- lose
- regain
- retain
- She managed to retain the championship