(aviation) The rate at which an aircraft gains altitude. A negative rate of climb implies descent.

(UK) a rate (typically of money) that does not vary over time

(UK) Being or relating to a flat rate.

(finance) The percentage of an amount of money charged for its use per some period of time (often a year).

Offered for sale or rent at a lower than usual rate.

A percentage which a trader adds to the buy-in cost of goods in order to get the selling price.

(UK, military, nautical, historical) Of a Royal Navy ship of the line in the Napoleonic Era: having at least 100 guns across three gun decks, a complement of 850–875, and weighing approximately 2,500 tons burthen.

(UK, military, nautical, historical) A first-rate ship of the line.

(economics, finance) The rate at which one currency can be exchanged for another, usually expressed as the value of the one in terms of the other.

plural of markup rate