Length ranks your synonyms based on character count.
Informal words should be reserved for casual, colloquial communication.
Concept Thesaurus for word punctuality2. RELATIVE TIME; Time with reference to an effect or purpose
Synonyms - noun
Synonyms - verbs
Synonyms - adjectives
Synonyms - phrases
touch and go, not a minute too soon, in the nick of time, just under the wire, get on board before the train leaves the station
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