subgrade

Fetched 2026-10-26 (cache).

Synonyms: upgrade, sunglade, subgame, suberate, subtrude, subgraph, subframe, sulgrave, subgrades, subrace

Antonyms: upgrade, sunglade, subgame, suberate, subtrude, subgraph, subframe, sulgrave, subgrades, subrace

Related words from Datamuse; suggestions, not definitions.

Noun

1. The [[layer]] of [[native]] [[soil]] on which the [[foundation]] of a [[road]] is [[lay|laid]].
2. {{lb|en|systematics}} A [[taxon]] ranking immediately below [[grade]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.