हम किसी और दिन मिलेंगे।

हम means we.

Even if only two people are involved—the speaker and the listener—Hindi still uses we, just like English in We’ll meet another day.

In standard Hindi, हम is normally not used for singular I.

Literally, किसी और दिन means on some other day.

In natural English, it usually becomes another day or some other day. In conversation, it often suggests postponing something:

• हम किसी और दिन मिलेंगे। = We’ll meet another day.

किसी is the oblique form of कोई.

Hindi often uses this oblique form in expressions like:

• किसी दिन = some day
• किसी और दिन = some other day

So for learners, it is best to memorize किसी और दिन as the natural pattern.

और has more than one meaning.

Here, और means other or another, not and.

So:

• किसी और दिन = some other day / another day

In other contexts:

• राम और सीता = Ram and Sita

Hindi often does not need a separate word like on in time expressions.

So किसी और दिन already naturally means:

• another day
• on another day

This is normal in Hindi. Compare:

• कल = tomorrow / yesterday
• उस दिन = that day / on that day
• किसी और दिन = some other day / on some other day

मिलेंगे comes from the verb मिलना, which means to meet.

Here, मिलेंगे is a future-tense form, so it means will meet.

So the sentence structure is:

• हम = we
• किसी और दिन = another day
• मिलेंगे = will meet

Together: We will meet another day.

The ending -ेंगे matches हम because the subject is we.

In this sentence, मिलेंगे is the normal future form for a plural subject, and it is also the default form for a mixed-gender or masculine group.

If the speakers are all female, you may also hear:

• हम किसी और दिन मिलेंगी।

But मिलेंगे is very common as the default form learners first meet.

Yes. Hindi often drops the subject when it is already clear from context.

So in conversation, you may hear:

• किसी और दिन मिलेंगे।

That still means We’ll meet another day.

Yes. किसी दूसरे दिन also means another day / some other day.

So both are possible:

• हम किसी और दिन मिलेंगे।
• हम किसी दूसरे दिन मिलेंगे।

किसी और दिन sounds very natural and common in everyday speech.

Yes, to a degree.

The most natural neutral order is:

• हम किसी और दिन मिलेंगे।

A good beginner pattern is:

• subject + time expression + verb

Hindi usually likes the verb near the end. Other orders are possible for emphasis, but this sentence is the safest and most natural version to learn first.

With मिलना, the person you meet is usually marked with से.

For example:

• हम आपसे किसी और दिन मिलेंगे। = We’ll meet you another day.
• हम उनसे किसी और दिन मिलेंगे। = We’ll meet them another day.

So a useful pattern is:

• [subject] + [person + से] + किसी और दिन + मिलेंगे

It is basically neutral and very natural.

You can use it in everyday speech when you want to postpone a meeting politely. Depending on tone, it can sound:

• practical
• polite
• slightly dismissive, if said abruptly

So the grammar is neutral; the feeling depends mostly on context and tone.