once

/wʌns/

adverb

bir kez; bir defa

On one occasion; one time; a single time.

  • I've only been to Paris once.
  • She calls her mother once a week.
  • The archaeological team typically excavates each designated site section only once to preserve the integrity of surrounding layers.
  • According to the study protocol, participants must complete the cognitive assessment once before beginning the treatment program.
  • The committee convenes once per semester to evaluate faculty research proposals and allocate available funding resources.
  • Most undergraduate students are required to attend a mandatory academic advising session at least once during their enrollment.
adverb

bir zamanlar; eskiden

At some time in the past; formerly.

  • This building was once a school.
  • He was once a famous actor.
conjunction

bir kez; -dığında

As soon as; when; after.

  • Once you finish your homework, you can watch TV.
  • Once the rain stops, we'll leave.