Adverb Prob·A·Bly True Factual Expected Doubt Happy Fairly

prob·a·bly
\\ˈprä-bə-blē, ˈprä(b)-blē\\ adverb: insofar as seems reasonably true, factual, or to be expected : without much doubt
    is probably happy
    it will probably rain

probably
  1530s, "plausibly," from probable. As a general purpose qualifier, 1610s.

☞ probably
prob·ably / 5prCbEbli; NAmE 5prB:b- / adverb   used to say that sth is likely to happen or to be true
   几乎肯定；很可能；大概:
   You're probably right.
   你很可能是对的。
   It'll probably be OK.
   这大概没有问题。
   It was the best known and probably the most popular of her songs.
   这是她最著名的、大概也是她最受欢迎的歌曲。
   'Is he going to be there?' 'Probably.'
   "他会去那里吗？" "大概吧。"
   'Do we need the car?' 'Probably not.'
   "我们需要开车吗？" "大概不需要吧。"
   As you probably know, I'm going to be changing jobs soon.
   你或许知道,我不久就要换工作了。
   The two cases are most probably connected.
   这两桩案件极有可能互相关联。

probably adv.

prob·a·bly
\ˈpräbəblē, ÷-äblē, -li\ adverb
1. archaic : in a fairly convincing way
 < your hypothesis … by which you have so probably solved the problem of gravity — Thomas Hobbes >
2.
 a. : insofar as seems reasonably true, factual, or to be expected : so far as fairly convincing evidence or indications go
  < will probably succeed >
  < is probably quite happy >
 b. : without much doubt : with practical certainty : very likely : in all probability

  < will probably be here soon >