sick headache sick flag • sickhearted · · · Info · Definitions · Synonyms · Characters · · sick headache · · Text Common · · Latin · · Scripts 13 · · Length 3 · · Syllables Definitions · · · (noun) a headache accompanied by nausea. Synonyms: sick headache. · · Noun Definition 1 (noun) a severe recurring vascular headache; occurs more frequently in women than men. Synonyms: migraine, megrim, sick headache, hemicrania. · · Noun Definition 2 Synonyms · · · migraine · · Synonym 1 megrim · · Synonym 2 hemicrania · · Synonym 3 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 k latin small letter k U+006B s latin small letter s U+0073