a method of sight singing music that uses the syllables do (originally ut), re, mi, fa, sol (or so), la, and si (or ti) to represent the pitches of the scale, most commonly the major scale. The fixed-do system uses do for C, and the movable-do system uses do for whatever key the melody uses (thus B is do if the piece is in the key of B).

To sing a sol-fa

(countable) A copy or reproduction. / (uncountable) Reproduction in the exact form as the original.

(transitive) To send via a facsimile machine; to fax. / (transitive) To make a copy of; to reproduce.

Easy, now especially in a disparaging sense; contemptibly easy. / (now rare) Amiable, flexible, easy to get along with. / Effortless, fluent (of work, abilities etc.).

(idiomatic, engineering) A quantity introduced to compensate for uncertainty. / (idiomatic) Any padding or compensation built into a guess or estimate.

(now rare) An edifice or building. / (archaic) The act of constructing, construction, fabrication.

(uncountable) The act of fabricating, framing, or constructing; construction; manufacture / (countable) That which is fabricated; a falsehood

The act of facilitating or making easy.

(slang) A condition in which the face swells, attributed to water retention caused by carbohydrate intake.