Meaning of もしかし in Japanese

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Definition of もしかし

もしかし(moshikashi)

もしかしたら(moshikashitara) 【若しかしたら】

(exp, adv) perhaps; maybe; perchance; by some chance; by any chance
この空模様だと、もしかしたら午後にはひと雨降るかもしれません。
From the look of the sky, it may rain in the afternoon.

もしかして(moshikashite) 【若しかして】

(exp, adv) perhaps; possibly
ああ、もしかして名前を呼ばれるのが恥ずかしいって？
Ah, could it be you're embarrassed to be called by your first name?

もしかしなくても(moshikashinakutemo)

Due to this a lot of time was lost, it's possible that if it wasn't for this accident the final stage of the race would have been better.

でも、ジェンの家いえのベランダにいたいるヴィンスは上半身裸じょうはんしんはだか。いやーいいえ、もしかしたらすっぽんぽんだったかもッ！

However, Vince, on Jen's house's veranda, was naked from the waist up. He might even have been starkers!

Ah, could it be you're embarrassed to be called by your first name?

It's no good saying 'Isn't it?' to me ... have you double-booked again?

Do you happen to know how to get downtown from here?

It might rain before evening.

He might change his mind.

It occurs to me that I may have misunderstood you.

I do not remember seeing the letter, but perhaps I read it.

From the look of the sky, it may rain in the afternoon.