Synonyms of the word

operative

• adj. Effectual or important.
• adj. Functional, in working order.
• adj. Having the power of acting; hence, exerting force, physical or moral; active in the production of effects.
• adj. Producing the appropriate or designed effect; efficacious.
• adj. Based upon, or consisting of, a surgical operation or operations.
• n. An employee or other worker with some particular function or skill.
• n. A spy, secret agent, or detective.
• n. A participant in an operation.

agent

• n. One who exerts power, or has the power to act.
• n. One who acts for, or in the place of, another (the principal), by authority from him/her; someone entrusted…
• n. A person who looks for work for another person.
• n. Someone who works for an intelligence agency.
• n. An active power or cause or substance; something which has the power to produce an effect.
• n. (computing) In the client-server model, the part of the system that performs information preparation and…
• n. (grammar) The participant of a situation that carries out the action in this situation, e.g. "the boy"…

detective

• n. (law enforcement) A police officer who looks for evidence as part of solving a crime; an investigator.
• n. A person employed to find information not otherwise available to the public.

effective

• adj. Having the power to produce a required effect or effects.
• adj. Producing a decided or decisive effect.
• adj. Efficient, serviceable, or operative, available for useful work.
• adj. Actually in effect.
• adj. (geometry, of a cycle or divisor) Having no negative coefficients.
• n. (military) A soldier fit for duty.

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).

functioning

• v. present participle of function.
• adj. Functional, working.
• adj. (euphemistic, of a person) Mentally disabled but still able to survive in wider society.
• n. Action of the verb function.
• n. Manner by which something functions; the workings.

good

• adj. (of people).
• adj. (of capabilities).
• adj. (of properties and qualities).
• adj. (colloquial) With "and", extremely.
• adj. Holy (especially when capitalized).
• adj. (of quantities).
• interj. That is good; an elliptical exclamation of satisfaction or commendation.
• adv. (nonstandard) Well; satisfactorily or thoroughly.
• n. (uncountable) The forces or behaviors that are the enemy of evil. Usually consists of helping others and…
• n. (countable) A result that is positive in the view of the speaker.
• n. (uncountable) The abstract instantiation of goodness; that which possesses desirable qualities, promotes…
• n. (countable, usually in the plural) An item of merchandise.
• v. (intransitive, now chiefly dialectal) To thrive; fatten; prosper; improve.
• v. (transitive, now chiefly dialectal) To make good; turn to good; improve.
• v. (intransitive, now chiefly dialectal) To make improvements or repairs.
• v. (intransitive, now chiefly dialectal) To benefit; gain.
• v. (transitive, now chiefly dialectal) To do good to (someone); benefit; cause to improve or gain.
• v. (transitive, now chiefly dialectal) To satisfy; indulge; gratify.
• v. (reflexive, now chiefly dialectal) To flatter; congratulate oneself; anticipate.
• v. (transitive, now chiefly dialectal, Scotland) To furnish with dung; manure; fatten with manure; fertilise.

important

• adj. Having relevant and crucial value.

key

• n. An object designed to open and close a lock.
• n. An object designed to fit between two other objects (such as a shaft and a wheel) in a mechanism and maintain…
• n. A crucial step or requirement.
• n. A guide explaining the symbols or terminology of a map or chart; a legend.
• n. A guide to the correct answers of a worksheet or test.
• n. (computing) One of several small, usually square buttons on a typewriter or computer keyboard, mostly…
• n. (music) One of a number of rectangular moving parts on a piano or musical keyboard, each causing a particular…
• n. (music) One of various levers on a musical instrument used to select notes, such as a lever opening a…
• n. (music) A hierarchical scale of musical notes on which a composition is based.
• n. (figuratively) The general pitch or tone of a sentence or utterance.
• n. (botany) An indehiscent, one-seeded fruit furnished with a wing, such as the fruit of the ash and maple;…
• n. (historical) A manual electrical switching device primarily used for the transmission of Morse code.
• n. (cryptography) A piece of information (e.g. a passphrase) used to encode or decode a message or messages.
• n. (Internet) A password restricting access to an IRC channel.
• n. (databases) In a relational database, a field used as an index into another table (not necessarily unique).
• n. (computing) A value that uniquely identifies an entry in an associative array.
• n. (basketball) The free-throw lane together with the circle surrounding the free-throw line, the free-throw…
• n. (biology) A series of logically organized groups of discriminating information which aims to allow the…
• n. (architecture) A piece of wood used as a wedge.
• n. (architecture) The last board of a floor when laid down.
• n. (masonry) A keystone.
• n. That part of the plastering which is forced through between the laths and holds the rest in place.
• n. (rail transport) A wooden support for a rail on the bullhead rail system.
• n. (heraldry) The object used to open or close a lock, often used as a heraldic charge.
• n. The degree of roughness, or retention ability of a surface to have applied a liquid such as paint, or…
• adj. Indispensable, supremely important.
• adj. Important, salient.
• v. To fit (a lock) with a key.
• v. To fit (pieces of a mechanical assembly) with a key to maintain the orientation between them.
• v. To mark or indicate with a symbol indicating membership in a class.
• v. (telegraphy and radio telegraphy) To depress (a telegraph key).
• v. (radio) To operate (the transmitter switch of a two-way radio).
• v. (computing) (more usually to key in) To enter (information) by typing on a keyboard or keypad.
• v. (colloquial) To vandalize (a car, etc.) by scratching with an implement such as a key.
• v. To link (as one might do with a key or legend).
• v. (intransitive, biology, chiefly taxonomy) To be identified as a certain taxon when using a key.
• v. To fasten or secure firmly; to fasten or tighten with keys or wedges.
• n. One of a string of small islands.
• n. Alternative form of quay.
• n. (slang) Clipping of kilogram. (though this is more commonly shortened to kay).

operant

• adj. That operates to produce an effect.
• n. An operative person or thing.
• n. (psychology) Any of a class of behaviors that produce consequences by operating (i.e., acting) upon the…

operating

• adj. In operation; that operates.
• adj. Involved in an operation.
• v. present participle of operate.

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.

postoperative

• adj. Of, pertaining to, or occurring in the period after a surgical operation.
• adj. Like someone who has recently had surgery.

preoperative

• adj. happening before surgery.

running

• adj. Moving or advancing by running.
• adj. successive; one following the other without break or intervention.
• adj. Flowing; easy; cursive.
• adj. Continuous; keeping along step by step.
• adj. (botany) Extending by a slender climbing or trailing stem.
• adj. (medicine) Discharging pus.
• adj. (of a nose) Discharging snot or mucus.
• adv. (informal) consecutively; in a row.
• n. The action of the verb to run.
• n. The activity of running as a form of exercise, as a sport, or for any other reason.
• n. That which runs or flows; the quantity of a liquid which flows in a certain time or during a certain operation.
• n. The discharge from an ulcer or other sore.
• v. present participle of run.

shamus

• n. A private detective.

sherlock

• v. Alternative letter-case form of Sherlock.

significant

• adj. Signifying something; carrying meaning.
• adj. Having a covert or hidden meaning.
• adj. Having a noticeable or major effect; notable.
• adj. Reasonably large in number or amount.
• adj. (statistics) Having a low probability of occurring by chance (for example, having high correlation and…
• n. That which has significance; a sign; a token; a symbol.

surgical

• adj. Of, relating to, used in, or resulting from surgery.
• adj. Precise or very accurate.

working

• n. (usually in the plural) Operation; action.
• n. Method of operation.
• n. Fermentation.
• n. (of bodies of water) Becoming full of a vegetable substance.
• v. present participle of work.
• adj. That is or are functioning.
• adj. That suffices but requires additional work.
• adj. In paid employment.
• adj. Of or relating to employment.
• adj. Enough to allow one to use something.