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KEY: Room.
SYN: Space, ground, compass, extent, locality, opportunity, capability, occasion, margin, capacity, admission.
ANT: Restriction, limitation, confinement, incapability, exclusion, neutralization.
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KEY: Roomy, [See SPACIOUS].
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KEY: Root.
SYN: Radix, radicle, stem, origin, source, spring, rise, commencement, parent.
ANT: Branch, ramification, outcome, product, issue, progeny.