certainly

/ˈsɝ.tn̩.li/
adverb

In a way which is certain; with certainty.

NWL Collins ENABLE

Adverb 3 meanings

  1. In a way which is certain; with certainty.

  2. Without doubt, surely.

    “The accident was certainly caused by human error.”

  3. An emphatic affirmative answer; of course.

    “Would you like it with ice? Certainly, and with lemon please.”

Definitions: Wiktionary (CC BY-SA) via Kaikki/Wiktextract

Where it comes from

Etymology

From Middle English certeynly; equivalent to certain + -ly.

Similar and opposite words

Similar
absolutelyindubitablyundoubtedlywisdefinitelydoubtlesslyindeedindisputably
Opposite
arguablyconditionallydebatablydeniablydoubtfullyquestionably

CERTAINLY at a glance

CERTAINLY has 9 letters and scores 14 points in Scrabble (C 3 + E 1 + R 1 + T 1 + A 1 + I 1 + N 1 + L 1 + Y 4) and 16 in Words With Friends, before board bonuses. It ranks #1,030 by how often it appears in everyday English. It is valid in ENABLE, NWL2023, Collins/SOWPODS.

Rhymes with certainly

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