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sub·ter·ra·ne·an

subterranean

 
pronunciation:
suhb t reI ni n
parts of speech:
adjective, noun
features:
Word Parts
part of speech: adjective
definition 1: below the earth's surface; underground.
similar words:
cavernous
definition 2: secret or hidden, as if underground.
 
part of speech: noun
definition: one that is or operates underground.
derivations: subterraneous (adj.), subterraneanly (adv.), subterraneously (adv.)
Word Parts  About this feature
The word subterranean contains the following parts:
sub- Latin prefix that means under, after
Show wordsHide wordsMore about this word part:
The prefix sub- was a Latin preposition and prefix and occurs in English in Latin loanwords, such as subjugate. It is also used in the formation of English words such as subway and subgroup. It has multiple forms, as the 'b' sound in sub- assimilates to the initial sound of the base to which it is attached. See the assimilated forms suc-, suf-, sum-, sup-, sur-, sus-, and su-.
synonyms:
hyp-, hypo-, under-
antonyms:
super-, supra-, hyper-
 
terr, terra Latin root that means earth, land
synonyms:
geo