1. [n]  the act of giving hope or support to someone
2. [n]  the act of giving an upward push; "he gave her a boost over the fence"
3. [n]  an increase in cost; "they asked for a 10% rise in rates"
4. [v]  give a boost to; be beneficial to; "The tax cut will boost the economy"
5. [v]  increase or raise; "boost the voltage in an electrical circuit"
6. [v]  push or shove upward, as if from below or behind; "The singer had to be boosted onto the stage by a special contraption"
7. [v]  increase; "The landlord hiked up the rents"
8. [v]  contribute to the progress or growth of; "I am promoting the use of computers in the classroom"

Boost
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1. \Boost\ (b[=oo]st), v. t. [imp. & p. p. {Boosted}; p. pr.
   & vb. n. {Boosting}.] [Cf. {Boast}, v. i.]
   To lift or push from behind (one who is endeavoring to
   climb); to push up; hence, to assist in overcoming obstacles,
   or in making advancement. [Colloq. U. S.]
   

2. \Boost\ (b[=oo]st), n.
   A push from behind, as to one who is endeavoring to climb;
   help. [Colloq. U. S.]