AM and PM are associated with 12-hour timekeeping, as opposed to the international 24-hour clock. The 12-hour system grew up mainly in Northern Europe, and spread globally from there via the British Empire.
The adjective STRENUOUS has 2 senses: 1. characterized by or performed with much energy or force. 2. taxing to the utmost; testing powers of endurance. Familiarity information: STRENUOUS used as an adjective is rare.
Unsourced material may be challenged and removed. (March 2009) (Learn how and when to remove this template message) Pace, also called rhythm or tempo, is the rate of activity or movement, such as in running or the flow of events in an entertainment piece.