| SUBSTANDARD | • substandard adj. Of inferior quality; not meeting the minimum quality requirements. • substandard adj. (Linguistics, dated) Not conforming to the standard variety; nonstandard.
 • sub-standard adj. Alternative spelling of substandard.
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| SUBSTANTIAL | • substantial adj. Having a substance; actually existing. • substantial adj. Not imaginary; real; actual; true; veritable.
 • substantial adj. Corporeal; material; firm.
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| SUBSTANTIVE | • substantive adj. Of the essence or essential element of a thing. • substantive adj. Having substance; enduring; solid; firm; substantial.
 • substantive adj. (Law) applying to essential legal principles and rules of right.
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| SUBSTATIONS | • substations n. Plural of substation. • sub-stations n. Plural of sub-station.
 • SUBSTATION n. a subordinate or subsidiary station.
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| SUBSTITUENT | • substituent n. (Chemistry) any atom, group, or radical substituted for another, or entering a molecule in place of… • substituent n. (Grammar) pro-form.
 • SUBSTITUENT n. a thing, esp. an atom, substituted for another.
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| SUBSTITUTED | • substituted v. Simple past tense and past participle of substitute. • SUBSTITUTE v. to put or use in the place of another.
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| SUBSTITUTES | • substitutes n. Plural of substitute. • substitutes v. Third-person singular simple present indicative form of substitute.
 • SUBSTITUTE v. to put or use in the place of another.
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| SUBSTRACTED | • substracted v. Simple past tense and past participle of substract. • SUBSTRACT v. to subtract; to withdraw, also SUBTRACT.
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| SUBSTRACTOR | • SUBSTRACTOR n. (Shakespeare) a detractor. | 
| SUBSTRATIVE | • SUBSTRATIVE adj. relating to a substratum. | 
| SUBSTRATUMS | • SUBSTRATUM n. that which underlies something, as a layer of earth lying under another, also SUBSTRATE. | 
| SUBSTRUCTED | • substructed v. Simple past tense and past participle of substruct. • SUBSTRUCT v. to build beneath; to lay as a foundation.
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