An unwillingness to settle for anything less than perfection. / (philosophy) A belief that spiritual perfection may be achieved during life, or that it should be striven for.

A (form of) rhyme in which the vowels and final (coda) consonants of stressed syllables (and, in modern English poetry, any following syllables to the end of the words) are identical in sound. (Contrast with half rhyme.)

(meteorology, informal) A powerful hurricane or other major weather disturbance, especially as produced by a combination of meteorological conditions.

plural of perfect storm

(grammar) A tense that expresses an unbroken action continuing up to a certain time in the past. In English it is formed by using had been with a present participle.

past perfect continuous

(grammar) present perfect continuous

Future perfect continuous.

(grammar) A tense used to express an ongoing action completed after some time in the future. In English it is formed by use of will have been (or shall have been) and a present participle.

(grammar) A tense that expresses an unbroken action continuing at the present time, started in the past. In English it is formed by using have been with a present participle.