accelerate
(v) 1. To go or to cause to go faster.
2. To bring about at an earlier time.
altitude
(n) Height above sea level or the earth's surface.
anxious
(adj) 1. Worried; concerned.
2. Eager; wishing strongly.
brace
(v) 1. To make stronger by giving support to.
2. To make ready for a shock; to prepare.
(n) Something used to support a weak part.