In paleography, a curve placed below the line so as to unite the parts of a compound word, and to indicate that they are not to be separated or read as distinct words: as, —that is, διόσκουροι, not Διο\ς κου%26ροι; —that is, περικλέονς, not πεπι\ κλέους —that is, antevolans, not ante volans, etc.In writing and printing, a short line (-) used to connect two words or elements: namely, to connect two words which are so used as properly to form a compound word; to join syllables which are for any purpose arbitrarily separated, as in regular syllabication (as in el-e-men-tal), at the end of a line to connect the syllables of a divided word (as in the third line of this paragraph), to indicate the pronunciation (as in the respellings for the pronunciations in this dictionary), and to indicate or separate the etymological parts of a word, stem, affixes, etc., often without regard to the syllables (as in element-al, intro-duct-ion, su-spic-ious).To join by a hyphen, as two words, so as to form a compound word. Also hyphenize, hyphenate.n. The symbol +, = plus.