data n. facts or information used in deciding or discussing sth
debate n. formal argument or discussion of a question, eg at a public meeting or in Parliament, with two or more opposing speakers, and often ending in a vote
decade n. period of ten years
decline v. say `no' to (sth); refuse (sth offered), usu politely
deduce v. ~ sth arrive at (facts, a theory, etc) by reasoning; infer sth
define v. ~ sth state precisely the meaning of (eg words)
definite adj. clear; not doubtful
demonstrate v. ~ sth (to sb) show sth clearly by giving proof or evidence
denote v. be the name, sign or symbol of (sth); refer to
deny v. say that (sth) is not true
depress v. make sad and without enthusiasm
derive v. ~ sth from sth obtain sth from sth; get sth from sth
design n. ~ (for sth) drawing or outline from which sth may be made
despite prep without being affected by
detect v. discover or recognize that (sth) is present
deviate v. ~ from sth stop following
device n. thing made or adapted for a special purpose
devote v. ~ oneself/sth to sb/sth give to sb/sth; dedicate ;
differentiate v. ~ between A and B; ~ A (from B) see or show (two things) to be different; show sth to be different (from sth else)
dimension n. measurement of any sort
diminish v. become smaller or less; decrease
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