metre UK /ˈmiːtə/US /ˈmiːtəɹ/noun 4verb 1forms 3 noun4 •The basic unit of length in the International System of Units (SI: Système International d'Unités), equal to the distance travelled by light in a vacuum in 1/299 792 458 seconds. The metre is equal to 39+⁴⁷⁄₁₂₇ (approximately 39.37) imperial inches.The measures of length above the metre are ten times ... greater than the metre. — 1797 •Rhythm or measure. •The rhythm or measure in language (especially verse). •The rhythm or measure in musical composition. verb1 •To put into metrical form. formsmetred · metring · metres
