Synonym: erstwhile, former, old, onetime, quondam, sometime. Similar words: sometimes, at the same time, from time to time, something, something of, take time, lifetime, by the time. Meaning: [ˈsʌmtaɪm] 
adj. belonging to some prior time. adv. at some indefinite or unstated time.
adj. belonging to some prior time. adv. at some indefinite or unstated time. 
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1, We'll take a vacation sometime in September.
2, Drop across and have coffee sometime.
3, We'll take our holiday sometime in August, I think.
4, Give me a call sometime.
5, It happened sometime last month.
6, Let's get together again sometime.
7, I saw him sometime last summer.
8, I'd like to see you again sometime.
9, We really should meet sometime soon to discuss the details.
10, sometime affection is a shy flower that takes time to blossom.
11, The sales figures won't be released until sometime next month.
12, An unacceptable love needs no sorrow but time- sometime for forgetting.A badly-hurt heart needs no sympathy but understanding.
13, Drop over to our house for a visit sometime.
14, Steel cans were introduced sometime during the forties.
15, We must have you over for dinner sometime.
16, Give me a bell sometime next week, won't you?
17, It will happen sometime and somewhere.
18, I hope I'll see you again sometime.
19, He came sometime last month.
20, I'd very much like to visit them sometime.
21, Maybe we could get together sometime next week?
22, We must get together for a drink sometime.
23, There'll be a fire drill sometime this morning.
24, You must come round sometime soon.
25, We must get together sometime.
26, Sometime Tim's a little slow on the uptake.
27, Can you look at my essay sometime?
28, Never cast dirt into that fountain of which thou hast sometime durnk. 
29, I'd like to fix up a meeting with you next week sometime.
30, Good relations are like needles of clock,(http://sentencedict.com/sometime.html) they only meet for sometime but always stay connected.
More similar words: sometimes, at the same time, from time to time, something, something of, take time, lifetime, by the time, at one time, all the time, something else, something like, at the time of, for the time being, some, someone, handsome, comet, somewhat, come to, time, come true, on time, in time, at no time, at a time, at times, in no time, to some extent, come to life.