mainstay Definition

linchpin, backbone, lynchpin, pillar, anchor, staple, cornerstone, keystone, hub, thorn, bedrock, fulcrum, mainstream, essential, thrust, sustenance, underpinning, core, key, centrepiece, main, breadwinner, prop, foundation, taproot, based, maintainer, subsistence, base, heart, engine, plank, pivot, subject, axis, basis, principal, strut, vault, trunk, spine, pier, juche, stalwart, workhorse, powerhouse, heyday, bastion, venerable, bulwark, flagship, forefront, resurgence, standout, holdover, offshoot, focal point, centerpiece, flourishing, bane, boon, touchstone, moneymaker, lifeblood, contributor, hallmark, darling, afterthought, crown jewel, integral, mecca, fixture, forte, byword, cog, pioneer, bustling, constants, hotbed, inroads, vogue, stepchild, forerunner, saving grace, commonplace, passe, whipping boy, niche, de rigueur, flashpoint, godsend, doyen, achilles heel, standbys, breadbasket, regulars, advent, stronghold, icon, juggernaut,