हम जन्मदिन मनाएँगे।

A common pronunciation guide is:

hum janmadin manāẽge

A few notes:

• हम = hum
• जन्मदिन = janmadin or sometimes said more smoothly as janamdin in everyday speech
• मनाएँगे = manāẽge

The ँ in मनाएँगे shows nasalization, so the vowel is slightly nasal.

Here, हम means we.

In standard Hindi, हम is the normal first-person plural pronoun. It does not tell you whether we is inclusive (you and I) or exclusive (someone else and I, not you). English also usually leaves that unclear, so the meaning depends on context.

A learner may also hear that in some dialects, हम can mean I, but in standard Hindi in a sentence like this, it means we.

जन्मदिन literally breaks down as:

• जन्म = birth
• दिन = day

So it means birthday.

This is a very common formal/standard Hindi word. In conversation, some speakers also use बर्थडे.

मनाएँगे comes from the verb मनाना, which often means to celebrate, to observe, or sometimes to persuade in other contexts.

In this sentence, it means will celebrate.

So:

• मनाना = to celebrate
• मनाएँगे = will celebrate

Hindi verbs change form depending on tense and also sometimes gender/number.

Because Hindi normally follows Subject–Object–Verb order.

So this sentence is structured like:

• हम = subject
• जन्मदिन = object
• मनाएँगे = verb

That gives: We + birthday + will celebrate

This is very normal in Hindi. English usually puts the verb earlier, but Hindi usually saves it for the end.

Hindi does not have articles like English a, an, and the.

So जन्मदिन can mean:

• a birthday
• the birthday
• sometimes even birthday in a more general sense

The exact meaning comes from context, not from an article.

Because जन्मदिन is the direct object of मनाना, and with this verb, Hindi normally uses the object without को.

So:

• हम जन्मदिन मनाएँगे = normal
• हम जन्मदिन को मनाएँगे = unnatural in most ordinary contexts

Many English speakers expect a marker before the object, but Hindi does not always use one. It depends on the verb and the type of object.

Because मनाएँगे is a future-tense form.

Compare:

• मनाना = to celebrate
• मनाते हैं = celebrate / celebrate habitually / are celebrating in some contexts
• मनाएँगे = will celebrate

So the sentence is specifically about the future.

Yes. In this sentence, मनाएँगे is the masculine plural or mixed-gender plural future form.

So this would be used if:

• the group is all male, or
• the group is mixed

If the group were all female, you would usually say:

हम जन्मदिन मनाएँगी।

So Hindi often marks gender in future verb forms.

The nasal sign ँ in मनाएँगे is part of the standard spelling of this future form.

You may also see learners wonder about the internal structure:

• base verb: मनाना
• future stem here: मनाएँ-
• ending: -गे

So मनाएँगे is the standard written form for we will celebrate / they will celebrate / you (formal) will celebrate, depending on the subject.

In informal typing, some people may write less carefully, but मनाएँगे is the standard spelling.

Not by itself.

हम जन्मदिन मनाएँगे just means We will celebrate a/the birthday, depending on context. It does not explicitly say whose birthday it is.

If you want to say We will celebrate our birthday, you would usually add a possessive word, for example:

• हम अपना जन्मदिन मनाएँगे। = We will celebrate our birthday.

So without अपना or another possessive, the sentence stays more general.

Yes. मनाना is the normal and very common verb for celebrating events such as:

• जन्मदिन मनाना = celebrate a birthday
• त्योहार मनाना = celebrate a festival
• सालगिरह मनाना = celebrate an anniversary

So जन्मदिन मनाना is a standard combination in Hindi, just like celebrate a birthday in English.

Yes. हम can refer to we, and depending on context, it can naturally include the sense of we all.

Hindi does not need a separate word here unless you want extra emphasis. If you really wanted to stress all of us, you might say something like:

• हम सब जन्मदिन मनाएँगे।

Here सब adds the idea of all. Without it, हम already means we and may imply the whole group if the context makes that clear.