Synonyms of the word

auxiliary

• adj. Helping; giving assistance or support.
• adj. Supplementary or subsidiary.
• adj. Held in reserve for exceptional circumstances.
• adj. (nautical) Of a ship, having both sails and an engine.
• adj. (grammar) Relating to an auxiliary verb.
• n. A person or group that acts in an auxiliary manner.
• n. A sailing vessel equipped with an engine.
• n. (grammar) An auxiliary verb.
• n. A marching band colorguard.

accessory

• adj. Having a secondary, supplementary or subordinate function by accompanying as a subordinate; aiding in…
• adj. (law) Assisting a crime without actually participating in committing the crime itself.
• adj. Present in a minor amount, and not essential.
• n. Something that belongs to part of another main thing; something additional and subordinate, an attachment.
• n. (fashion) An article that completes one's basic outfit, such as a scarf or gloves.
• n. (law) A person who is not present at a crime, but contributes to it as an assistant or instigator.
• n. (art) Something in a work of art without being indispensably necessary, for example solely ornamental…

adjunct

• n. An appendage; something attached to something else in a subordinate capacity.
• n. A person associated with another, usually in a subordinate position; a colleague.
• n. (dated, metaphysics) A quality or property of the body or mind, whether natural or acquired, such as colour…
• n. (music) A key or scale closely related to another as principal; a relative or attendant key.
• n. (grammar) A dispensable phrase in a clause or sentence that amplifies its meaning, such as "for a while"…
• n. (syntax, X-bar theory) A constituent which is both the daughter and the sister of an X-bar.
• n. (rhetoric) Symploce.
• n. (category theory) One of a pair of morphisms which relate to each other through a pair of adjoint functors.
• adj. Connected in a subordinate function.
• adj. Added to a faculty or staff in a secondary position.

adjuvant

• adj. helping; helpful; assisting. [from 16th c.].
• adj. (medicine) Designating a supplementary form of treatment; specifically, a cancer therapy administered…
• n. Someone who helps or facilitates; an assistant, a helper. [from 16th c.].
• n. (medicine) Something that enhances the effectiveness of a medical treatment; a supplementary treatment…
• n. (pharmacology) An additive (as in a drug) that aids or modifies the action of the principal ingredient…
• n. (pesticide science) An additive (often a separate product) that enhances the efficacy of pesticide products,…
• n. (immunology) A substance enhancing the immune response to an antigen. [from 20th c.].

aide

• n. An assistant.
• n. (military) An officer who acts as assistant to a more senior one; an aide-de-camp.

ancillary

• adj. Subordinate; secondary; auxiliary; accessory.
• n. Something that serves an ancillary function, such as an easel for a painter.
• n. (archaic) An auxiliary.

appurtenant

• adj. Of or pertaining to an appurtenance.
• adj. Ancillary or subsidiary.
• n. An appendage or attachment.
• n. (law) A type of easement benefiting real property that "runs with the land" as opposed to an interest…

assistant

• adj. Having a subordinate or auxiliary position.
• adj. Helping; lending aid or support; auxiliary.
• n. (obsolete) Someone who is present; a bystander, a witness.
• n. A person who assists or helps someone else.
• n. (Britain) Sales assistant.
• n. A software tool that provides assistance in some task.

help

• n. (uncountable) Action given to provide assistance; aid.
• n. (usually uncountable) Something or someone which provides assistance with a task.
• n. Documentation provided with computer software, etc. and accessed using the computer.
• n. (usually uncountable) One or more people employed to help in the maintenance of a house or the operation…
• n. (uncountable, euphemistic) Correction of deficits, as by psychological counseling or medication or social…
• v. (transitive) To provide assistance to (someone or something).
• v. (transitive) To contribute in some way to.
• v. (intransitive) To provide assistance.
• v. (transitive) To avoid; to prevent; to refrain from; to restrain (oneself). Usually used in nonassertive…
• interj. A cry of distress or an urgent request for assistance.

helper

• n. One who helps; an aide.
• n. (Singapore) A person who does cleaning and cooking in a family, or in a market.

secondary

• adj. Next in order to the first or primary; of second place in origin, rank, etc.
• adj. Originating from a deputy or delegated person or body.
• adj. (organic chemistry) Derived from a parent compound by replacement of two atoms of hydrogen by organic…
• adj. (geology) produced by alteration or deposition subsequent to the formation of the original rocks mass.
• adj. (geology) developed by pressure or other causes.
• adj. (anatomy) Pertaining to the second joint of the wing of a bird.
• adj. (medicine) Dependent or consequent upon another disease, or occurring in the second stage of a disease.
• adj. Of less than primary importance.
• adj. (education) related to secondary education, i.e. schooling between the ages of 11 and 18.
• adj. (manufacturing) relating to the manufacture of goods from raw materials.
• adj. (of a color) Formed by mixing primary colors.
• n. (ornithology) Any flight feather attached to the ulna (forearm) of a bird.
• n. (finance) An act of issuing more stock by an already publicly traded corporation.
• n. (American football, Canadian football) The defensive backs.
• n. (electronics) An inductive coil or loop that is magnetically powered by a primary in a transformer or…
• n. One who occupies a subordinate or auxiliary place; a delegate deputy.
• n. (astronomy) A secondary circle.
• n. (astronomy) A satellite.
• n. Used as an abbreviation to refer to items with names containing secondary.

subsidiary

• adj. Auxiliary or supplemental.
• adj. Secondary or subordinate.
• adj. Of, or relating to a subsidy.
• n. A company owned by a parent company or a holding company, also called daughter company or sister company.
• n. (music) A subordinate theme.

supplemental

• adj. Acting to supplement.
• adj. Appending.
• adj. Lacking a regular schedule (as in a supplemental airline).
• n. Something that supplements or adds to.
• n. A requisition or article of legislation that provides additional funding for a program.

supplementary

• adj. Additional; added to supply what is wanted.
• n. Something additional; an extra.

supporter

• n. A person who gives support to someone or something.
• n. Something that supports another thing.

supportive

• adj. Providing support.