from The American Heritage® Dictionary of the English Language, 4th Edition

  • adv. Undoubtedly; definitely: This is certainly not my writing.
  • adv. By all means; of course: You may certainly join us.
  • adv. Surely: They certainly are hard workers.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adv. In a way which is certain; with certainty.
  • adv. Without doubt, surely; of course.
  • adv. An emphatic affirmative answer.

from the GNU version of the Collaborative International Dictionary of English

  • adv. Without doubt or question; unquestionably.

from The Century Dictionary and Cyclopedia

  • With certainty; without doubt or question; in truth and fact; without fail; inevitably; assuredly; undoubtedly; unquestionably; of a certainty.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adv. definitely or positively (`sure' is sometimes used informally for `surely')


from Wiktionary, Creative Commons Attribution/Share-Alike License

certain +‎ -ly


  • The R rating should certainly mean there is a lot more to follow that they can't show us in the trailer..certainly should make it a lot edgier.

    First Trailer for Katherine Heigl's The Ugly Truth «

  • The scientific issues were what initially brought me to this debate, but the religious implications are certainly right there in your face as well...and, both subjects are *certainly* interesting.

    Creationism and Censorship

  • “You are certainly quite right about it, ” Porfiry began gaily, looking with extraordinary simplicity at Raskolnikov (which startled him and instantly put him on his guard) “certainly quite right in laughing so wittily at our legal forms, he-he!

    Chapter V. Part IV

  • 'We certainly intend,' -- the emphasis here is on the word '_certainly_,' though the reader who has not the key of the times may not perceive it; 'We certainly intend to comprehend them ALL.'

    The Philosophy of the Plays of Shakspere Unfolded

  • Getting back to why I say Ma * lied* to the public, listen to what Chinese Premier Wen Jiabao (溫家寶) says about an ECFA: --- Promoting the signing of a cross-Strait [sic] ECFA will certainly bring about complete unification of the motherland [sic] --- It will * most certainly* affect Taiwan's sovereignty, and I believe that Mr. Ma knows this very well. - Articles related to Taiwan urges China not to block trade agreements

  • And while that might be debatable, the phrase certainly applies to Robert Redford, erstwhile Mr 1970s Box Office and former bedroom poster idol of a generation, now an irredeemably boring director.

    The Conspirator proves that Robert Redford should stick to Sundance

  • Ironically, while the title certainly titillates, it's hardly radical.

    Buddhist Backlash: Stephen Batchelor Braves The Storm

  • The C of the title certainly stands for Carrefax, but also for cyanide, Sophie's poison of choice; cysteine, the amino acid that darkens the spa waters; his father's coils of copper wire; the caul Serge was born under; the air corps where he first snorts cocaine; Morse code; and even the cc of Serge's carbon-copied reports.

    Tom McCarthy's "C," reviewed by Samantha Hunt

  • The name certainly fires the imagination, conjuring up images of Star Trek and other fictional settings in which people, either through fictional science or just plain magic, can instantaneously transport objects from one place to another.

    How to Teach Physics to Your Dog

  • Many are outraged and the title certainly is designed to provoke.

    Unreading « educating alice


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