Order in Synonyms Column

Do we have to any order in adding synonyms in Columns Vocabulary?

Yes @keerthana.kalimuthu, When you load data, a synonym will be automatically added for each column. For each synonym you add, the first one will be considered as the default. This default synonym is used when displaying Smart Column and Smart Query columns. If you wish to set a different synonym as the default, you can simply drag it to the first position.