"In nick time" is a phrase used to express the idea of something being done at the very last moment, when time is almost up. There are several other words or phrases that can be used as synonyms for this expression. For example, "just in time" is a common phrase that has a similar meaning. Other phrases that could be used include "at the eleventh hour," "in the final hour," or "in the nick of time." Each of these phrases conveys the idea of something being completed at the last possible moment, when there is very little time remaining. Regardless of which phrase is used, the concept remains the same.