Decrease and Rub

decrease

A change downward.
- usage: "there was a decrease in his temperature as the fever subsided"; "there was a sharp drop-off in sales"
- synonyms: lessening, drop-off
A process of becoming smaller or shorter.
- synonyms: decrement
The amount by which something decreases.
- synonyms: decrement
The act of decreasing or reducing something.
- synonyms: diminution, reduction, step-down

Decrease in size, extent, or range.
- usage: "The amount of homework decreased towards the end of the semester"; "The cabin pressure fell dramatically"; "her weight fell to under a hundred pounds"; "his voice fell to a whisper"
- synonyms: diminish, lessen, fall
Make smaller.
- usage: "He decreased his staff"
- synonyms: lessen, minify

(v.t.) To cause to grow less; to diminish gradually; as, extravagance decreases one's means.
(v.) A becoming less; gradual diminution; decay; as, a decrease of revenue or of strength.
(n.) To grow less, -- opposed to increase; to be diminished gradually, in size, degree, number, duration, etc. or in strength, quality or excellence; as, they days decrease in length from June to December.
(v.) The wane of the moon.

Webster's Revised Unabridged Dictionary

rub

An unforeseen obstacle.
- synonyms: hang-up, hitch, snag
The act of rubbing or wiping.
- usage: "he gave the hood a quick rub"
- synonyms: wipe

Move over something with pressure.
- usage: "rub my hands"; "rub oil into her skin"
Cause friction.
- usage: "my sweater scratches"
- synonyms: fray, fret, chafe, scratch
Scrape or rub as if to relieve itching.
- usage: "Don't scratch your insect bites"
- synonyms: scratch, itch

(n.) The act of rubbing; friction.
(n.) A stone, commonly flat, used to sharpen cutting tools; a whetstone; -- called also rubstone.
(v.t.) To hinder; to cross; to thwart.
(n.) Something grating to the feelings; sarcasm; joke; as, a hard rub.
(v.t.) To subject (a body) to the action of something moving over its surface with pressure and friction, especially to the action of something moving back and forth; as, to rub the flesh with the hand; to rub wood with sandpaper.
(v.t.) To move over the surface of (a body) with pressure and friction; to graze; to chafe; as, the boat rubs the ground.
(n.) Inequality of surface, as of the ground in the game of bowls; unevenness.
(n.) Imperfection; failing; fault.
(n.) That which rubs; that which tends to hinder or obstruct motion or progress; hindrance; obstruction, an impediment; especially, a difficulty or obstruction hard to overcome; a pinch.
(v.i.) To fret; to chafe; as, to rub upon a sore.
(v.t.) To spread a substance thinly over; to smear.
(v.i.) To move along the surface of a body with pressure; to grate; as, a wheel rubs against the gatepost.
(v.t.) To scour; to burnish; to polish; to brighten; to cleanse; -- often with up or over; as, to rub up silver.
(n.) A chance.
(v.i.) To move or pass with difficulty; as, to rub through woods, as huntsmen; to rub through the world.
(v.t.) To cause (a body) to move with pressure and friction along a surface; as, to rub the hand over the body.

Webster's Revised Unabridged Dictionary

RUB is the ISO 4217 currency code for the Russian Rouble.