to wriggle or squirm / to make a squiggle / to write illegibly

a square in Westminster; the site of Nelson's Column, National Gallery and frequent demonstrations

the City of London

(nautical) A square-rigged ship.

(nautical, of a ship) Having (approximately) square sails rigged onto spars perpendicular to the keel. / Smartly dressed.

An open area in a town housing a public market, often on just one day per week; a marketplace.

To waste, lavish, splurge; to spend lavishly or profusely; to dissipate. / (obsolete) To scatter; to disperse. / (obsolete) To wander at random; to scatter.

(meteorology) A squall line, multicell line, or part of a squall line. / (often nautical) A sudden storm, as found in a squall line. / A loud cry or wail.

To cry or wail loudly.

A shrill noise, especially made by a voice or bird; a yell, scream, or call. / (aviation) A four-digit transponder code used by aircraft for identification or transmission of emergency signals.