Similar words: a, ad, as, ash, at, oh, uh, CH. Meaning: [ɑː] 
interj.(used as an exclamation of pain, surprise, pity, complaint, dislike, joy, etc., according to the manner of utterance.).
interj.(used as an exclamation of pain, surprise, pity, complaint, dislike, joy, etc., according to the manner of utterance.). 
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1) Open your mouth wide and say "Ah".
2) Ah, I get it.
3) Why has the train stopped? Ah, now we're off again.
4) Ah, here comes the bus at last!
5) Ah, this coffee is good.
6) Ah ! This is a waste of time!
7) Ah well, better luck next time.
8) Ah, look - here's the postman.
9) Ah, so you've bought new slippers yet!
10) Ah, that's better. I needed to sit down.
11) Ah, so many questions,(http://sentencedict.com/ah.html) so little time.
12) Ah, what a lovely baby!
13) Ah, Jessica, how wonderful to see you!
14) Ah, but that may not be true.
15) Have you seen my keys anywhere? Ah, there they are.
16) Ah, I was still footloose and fancy-free in those days.
17) We were young and madly in love. Ah, those were the days!
18) Ah, this is the life! Lying on the beach, sipping cool drinks.
19) "Ah, you're here, " she said and heaved/let out/gave a sigh of relief.
20) He called you a bad name, did he? Ah, diddums!
21) Ah so you've decided to grace us with your presence!
22) Ah! There you are!
23) Ah, a long, cool , refreshing drink! Just what the doctor ordered!
24) Ah[sentencedict.com], yes: The proverbial three-hour tour.
25) Ah! who would then be counted in the Number?
26) Ah, the life of the hip-hop mogul.
27) Ah, a glamorous jewel thief.
28) Gary Regan: Ah, martini: The very word denotes sophistication.
29) Ah, well! we may conjecture many things.
30) Ah, she has been shot, poor thing.