raise, rise, increase

[marieuni]

Could someone tell me what the difference in using among the words: raise, rise, increase?

[angel_catcher75]

raise: v. elevate, lift; excite, arouse; cause, bring about; grow, cultivate
rise: v. stand up, get into an upright position; get out of bed; climb, ascend, move upward; rebel, revolt; , grow; appear over the horizon; come back to life, return from the dead; puff up, swell; originate in, begin in
increase: v. enlarge, add to, augment; multiply, heighten, intensify
another difference is that rise is an intranstive verb while raise is a transitive one. increase can be transitive and intransitive according to the context

[marieuni]

If I describe about the currency rate going up or down, which word is used suitable?

[sarat_106]

If I describe about the currency rate going up or down, which word is used suitable?

rising and falling go synonymous with up and down