A storm of such force that it occurs only once every one hundred years approximately.

plural of one-hundred-year storm

(dated, politically incorrect) An American who is white, native-born, and Protestant.

plural of one hundred percent American

(idiomatic, anime and manga fandom slang) To be so immature and unprepared as to have no hope of achieving an accomplishment.

(music) A note played for 1⁄128 of the duration of a whole note.

plural of hundred twenty-eighth note

(music, very rare) A note played for 1⁄256 of the duration of a whole note.

plural of two hundred fifty-sixth note

The cardinal number occurring after nine thousand nine hundred and ninety-eight and before ten thousand, represented in Arabic numerals as 9,999. Represented in Roman numerals as IXCMXCIX.