Wiktionary:Word of the day/2021/June 17

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sol n

(music) In a movable-do or tonic sol-fa system: the fifth step in a scale, preceded by fa and followed by la. In a fixed-do system: the musical note G. [...] (historical) An old coin from France and some other countries worth 12 deniers. [...] (historical) A former Spanish-American silver coin. In full nuevo sol or new sol: the main currency unit of Peru which replaced the inti in 1991; also, a coin of this value. [...] (astronomy) A solar day on the planet Mars (equivalent to 24 hours, 39 minutes, 35 seconds). [...] (physical chemistry) A type of colloid in which a solid is dispersed in a liquid. (obsolete) A solution to an objection (or "ob"), for example, in controversial divinity.

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