assert verb
1 say sth clearly and firmly
ADV. boldly, confidently, emphatically, forcefully, strongly The report asserts confidently that the industry will grow. | directly, explicitly | simply He had no real evidence?he simply asserted that what he said was true. | repeatedly | rightly
2 make other people recognize your rights/authority
ADV. successfully They successfully asserted their right to protect their homes.
VERB + ASSERT need to | be determined to, wish to She wished to assert her independence from her parents. | seek to, try to | be able to, manage to He managed to assert his power over the media. | be unable to, fail to
You can also check other dicts: assert (English, 中文解释 ), wordnet sense, Collins Definition