Chapter Words Relating to the Voluntary Powers of Index by Roget's Thesaurus

620. Requirement (Substantives), requisition, need, occasion, lack, wants, requisites, necessities, desideratum, exigency, pinch, sine qua non, the very thing.

Needfulness, essentiality, necessity, indispensability, urgency, call for.

(Verbs). To require, need, want, have occasion for, stand in need of, lack, desire, be at a loss for, desiderate; not to be able to do without or dispense with; to want but little.

To render necessary, to necessitate, to create a necessity for, to call for.

(Adjectives). Requisite, required, etc., needful, necessary, exigent, essential, indispensable, irreplaceable, prerequisite, that cannot be spared or dispensed with, urgent.

2°. Subservience to Ends

1. Actual Subservience

• Instrumentality (Substantives), medium, intermedium, intervention, mediation, dint, see Agency 170, vehicle.

Midwife, accoucheur.

Key, master-key, passport, passepartout, "open sesame," a go-between 758, a cat's-paw, tool, mainstay, trump card.

(Phrases). Two strings to one's bow; cheval de bataille.

(Adjectives). Instrumental, intervening, intermediate, intermediary, subservient.

(Adverbs). Through, by, with, by means of, by dint of, à force de, along with, thereby, through the medium, etc., of, wherewith, wherewithal.

• Means (Substantives), resources, appliances, ways and means, expedients, step, measure 626, aid 707, intermedium, medium.

Machinery, mechanism, mechanics, engineering, mechanical powers, scaffolding, ladder, mainstay.

(Phrases). Wheels within wheels; two strings to one's bow.

To beg, borrow, or steal.

(Adjectives). Instrumental, subservient, mechanical.

(Adverbs). How, by what means, by all means, by all manner of means, by the aid of, by dint of.

(Phrases). By hook or by crook; somehow or other; for love or money; by fair means or foul.

• Instrument (Substantives), tool, implement, apparatus, utensil, gadget, craft, machine, engine, motor, lathe.

Weapon, arms, armoury, battery.

Equipment, gear, tackle, tackling, rigging, harness, paraphernalia, equipage, material, plant, appurtenances.

A wheel, jack, mill, clock-work, wheel-work, spring, screw, turbine, wedge, fly-wheel, lever, bascule, pinion, crank, winch, crane, capstan, windlass, pulley, monkey-engine, hammer, mallet, mattock, mall, bat, racket, sledge-hammer, mace, club, truncheon, pole, staff, bill, crow, crowbar, poleaxe, handspike, crutch, boom, bar, pitchfork, etc.