Synonyms for under-surfaces

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Antonyms for under-surfaces

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Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLES FROM THE WEB FOR UNDER-SURFACES

Some of the posts and under-surfaces of the houses are carved with figures of crocodiles and so forth.

This bird is very similar to the Black Guillemot except that the under-surfaces of the wings are dark.