(idiomatic) The part of town that is not inhabited by the wealthy. An area where the working class, poor or extremely poor live.

(idiomatic) To prevent someone from continuing along a path or way, literal or figurative, he has begun going along.

(simile) Very common or frequently encountered; not at all rare. / (simile) Very common or vulgar; not sophisticated.

(figuratively) To conceal how one arrived at a certain result or position.

(idiomatic) A part of a town or city that is particularly impoverished, and usually dangerous or undesirable as a result.

Agent noun of track; one who, or that which, tracks or pursues, as a man or dog that follows game. / (US politics) A person employed to follow and monitor a political rival.

An ordered sequence of GPS coordinate measurements stored by a satellite navigation system.

(software, Internet, blogging) A protocol for a system that allows a blogger to see who has seen the original post and has written another entry concerning it.

(cricket) A ball bowled so as to pitch roughly half way down the wicket, ie. half-way between batsman and bowler. (From a slow bowler this is a poor delivery, likely to be hit to the boundary.)

A garment, usually consisting of a top and trousers (commonly known as tracksuit bottoms) worn as an outer layer by participants in sporting events such as athletics. The tracksuit is usually designed to be easily removed or replaced, before or after competing. Tracksuits have also been adopted in some cultures as leisurewear.