D defs.my
Entry 1 sense Webster, 1913

Tautology

· Tau·tol·o·gy · IPA /tɔˈtɑl.ə.d͡ʒi/
01 n. A repetition of the same meaning in different words; needless repetition of an idea in different words or phrases; a representation of anyt…
  1. 1.
    A repetition of the same meaning in different words; needless repetition of an idea in different words or phrases; a representation of anything as the cause, condition, or consequence of itself,(Rhet.)
    “The dawn is overcast, the morning lowers, And heavily in clouds brings on the day.” Addison.
Syn. Repetition.
-- Tautology, Repetition. There may be frequent repetitions (as in legal instruments) which are warranted either by necessity or convenience; but tautology is always a fault, being a sameness of expression which adds nothing to the sense or the sound.