tautology /tɑˈtɑːləʤi/ noun plural tautologies
plural tautologies
Learner's definition of TAUTOLOGY
: a statement in which you repeat a word, idea, etc., in a way that is not necessary(不必要的)同义反复;赘述 [count]
[noncount]
— tautological
/ˌtɑːtəˈlɑːʤɪkəl/ adjective