Meaning of 30th March 16, 2021March 10, 2021 by bumkailashkumar 30th Definitions of 30th adjective coming next after the twenty-ninth in position synonyms: thirtieth ordinal being or denoting a numerical order in a series Word Family Sign up now (it’s free!) Whether you’re a teacher or a learner, Vocabulary.com can put you or your class on the path to systematic vocabulary improvement. Get started