bounded — (of a set) having a bound, esp where a measure is defined in terms of which all the elements of the set, or the differences between all pairs of members, are less than some value, or else all its members lie within some other well-defined set
founded — simple past tense and past participle of find.
rounded — having a flat, circular surface, as a disk.
sounded — Surgery. a long, slender instrument for sounding or exploring body cavities or canals.
Three-syllable rhymes
compounded — If something is compounded of different things, it is a mixture of those things.
surrounded — to enclose on all sides; encompass: She was surrounded by reporters.