using

transitive verb used , using

1. to put or bring into action or service; employ for or apply to a given purpose
2. to practice; exercise: to use one's judgment
3. to act or behave toward; treat: to use a friend badly
4. to consume, expend, or exhaust by use: often with up: to use up one's energy
5. 1. to smoke or chew (tobacco)
   2. to take or consume habitually: to use drugs
6. to make familiar; accustom: used in the passive with to: to become used to certain ways
7. to exploit or treat (a person) as a means to some selfish end

Origin: ME usen < OFr user < VL *usare < L usus, pp. of uti, to use

intransitive verb

1. to be accustomed; be wont: now only in the past tense, with an infinitive, meaning “did at one time”: he used to live in Iowa
2. Now Chiefly Dial. to frequent; resort

noun

1. the act of using or the state of being used
2. the power or ability to use: to regain the use of an injured hand
3. the right or permission to use: to grant a neighbor the use of one's car
4. the need, opportunity, or occasion to use: no further use for his services
5. an instance or way of using
6. the quality that makes a thing useful or suitable for a given purpose; advantage; usefulness; worth; utility
7. the object, end, or purpose for which something is used
8. function, service, or benefit
9. constant, continued, customary, or habitual employment, practice, or exercise, or an instance of this; custom; habit; practice; wont
10. the particular form of ritual or liturgy practiced in a given church, diocese, etc.
11. Law
    1. the enjoyment of property, as from occupying, employing, or exercising it

    2. Origin: infl. by OFr ues, gain < L opus, a work

       profit, benefit, or advantage, esp. that from lands and tenements held in trust by another

Origin: ME & OFr us < L usus