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Roughly vs Probably - What's the difference?

roughly | probably |

As adverbs the difference between roughly and probably

is that roughly is in a rough manner while probably is in all likelihood.

roughly

English

Adverb

(en-adv)
  • In a rough manner.
  • Unevenly; harshly; rudely; severely; austerely.
  • Imprecise but close to in quantity or amount; approximately.
  • *{{quote-magazine, date=2013-12-06, author= Alok Jha
    • , volume=189, issue=26, page=27, magazine=(The Guardian Weekly) , title= A deadly disease could travel at jet speed around the world. How do we stop it in time? , passage=Of the roughly 400 emerging infectious diseases that have been identified since 1940, more than 60% are zoonotic: ie they came from animals. Throughout history this has been common.}}

    Synonyms

    * approximately, around, near, nearly, almost, about, loosely, circa

    probably

    English

    Alternative forms

    * (colloquial)

    Adverb

    (en adverb)
  • In all likelihood.
  • *{{quote-book, year=1922, author=(Ben Travers), title=(A Cuckoo in the Nest)
    • , chapter=1 citation , passage=“[…] the awfully hearty sort of Christmas cards that people do send to other people that they don't know at all well. You know. The kind that have mottoes
  • *{{quote-magazine, year=2013, month=May-June, author= William E. Conner
    • , title= An Acoustic Arms Race , volume=101, issue=3, page=206-7, magazine=(American Scientist) , passage=Earless ghost swift moths become “invisible” to echolocating bats by forming mating clusters close

    Synonyms

    * (in all likelihood) likely, perhaps, maybe, possibly, presumably, most likely, doubtless, in all probability, perchance, as likely as not, as like as not

    Statistics

    * English modal adverbs English hedges 1000 English basic words