Synonyms of the word

usable

• adj. capable of being used.

available

• adj. Such as one may avail oneself of; capable of being used for the accomplishment of a purpose.
• adj. Readily obtainable.
• adj. (law) Valid.
• adj. (archaic) Having sufficient power, force, or efficacy to achieve the purpose; availing, effective.
• adj. Not in a romantic relationship; single.

disposable

• n. Any object that is designed to be disposed of rather than refilled or repaired.
• adj. That can be disposed of.
• adj. That is designed to be discarded rather than refilled or repaired.
• adj. Available to be used.

functional

• adj. In good working order.
• adj. Useful; serving a purpose, fulfilling a function.
• adj. Only for functional purposes, notably in architecture.
• adj. (computing theory) Having semantics defined purely in terms of mathematical functions, without side-effects.
• adj. (medicine) Of a disease, such that its symptoms cannot be referred to any appreciable lesion or change…
• n. (mathematics) A function that takes a function as its argument; More precisely: A function y=f(x) whose…
• n. (mathematics, functional analysis) A scalar-valued linear function on a vector space.
• n. (computing) An object encapsulating a function pointer (or equivalent).

operable

• adj. Able to be operated or used.
• adj. Able to be put into operation; practicable.
• adj. Able to be treated by surgery.

operational

• adj. Of or relating to operations, especially military operations.
• adj. Functioning and ready for use.
• adj. Effective or operative.
• adj. Determined by means of practical measures.

serviceable

• adj. Easy to service.
• adj. Repairable instead of disposable.
• adj. In condition for use.

useable

• adj. Alternative spelling of usable.

useful

• adj. Having a practical or beneficial use.

utile

• adj. (now rare) Useful.
• n. (economics) A theoretical unit of measure of utility, for indicating a supposed quantity of satisfaction…