Roget's Thesaurus: Entry 631 (Instrumentality)

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#631. Instrumentality. -- N. instrumentality; aid &c. 707; subservience, subserviency; mediation, intervention, medium, intermedium[obs], vehicle, hand; agency &c. 170.

minister, handmaid; midwife, accoucheur[Fr], accoucheuse[Fr], obstetrician; gobetween; cat's-paw; stepping-stone.

opener &c. 260; key; master key, passkey, latchkey; " open sesame "; passport, passe-partout, safe-conduct, password.

instrument &c. 633; expedient &c. (plan) 626; means &c. 632.

V. subserve, minister, mediate, intervene; be instrumental &c. adj.; pander to; officiate; tend.

Adj. instrumental; useful &c. 644; ministerial, subservient, mediatorial[obs]; intermediate, intervening; conducive.

Adv. through, by, per; whereby, thereby, hereby; by the agency of &c. 170; by dint of; by virtue of, in virtue of; through the medium of &c. n.; along with; on the shoulders of; by means of &c. 632; by the aid of, with the aid of &c. (assistance) 707.

per fas et nefas[Lat], by fair means or foul; somehow, somehow or other; by hook or by crook.