(idiomatic, intransitive) To select only that which is of value.

A chalk-like material used for marking alterations on fabric in tailoring and dressmaking. The marks are brushed or washed off the material when no longer needed.

(idiomatic) To do something pointless or insignificant that will soon be overtaken by events, or that contributes nothing to the solution of a current problem.

One who challenges; especially, one who plays against the current champion of a game or contest in hopes of winning and becoming the new champion.

An area where lumber is sorted and piled at a sawmill.

(transitive) to achieve something / (archaic, Australia, slang) To assign a debt to someone

(biochemistry) a chain of amino acids, linked by peptide bonds, that forms the 'backbone' of proteins

(molecular biology) A technique in molecular biology for creating multiple copies of DNA from a sample; used in genetic fingerprinting etc.

(uncountable) Small pieces of paper punched out from the edges of continuous stationery, or from ballot papers, paper tape, punched cards, etc. / (countable) One of these pieces of paper.

(West Country, obsolete) I had