Die stapper wag vir ons.

Yes. die is the Afrikaans definite article, so here it means the.

A useful difference from English is that Afrikaans uses die for:

• singular nouns: die man = the man
• plural nouns: die mense = the people

It does not change for gender, so you do not need separate forms like the for masculine/feminine/neuter.

Stapper literally refers to someone who walks. Depending on context, it can mean:

• walker
• hiker
• sometimes pedestrian

It is built from the verb stap, which means to walk or to step.

So die stapper is the walker / the hiker.

In Afrikaans, present-tense verbs usually do not change according to the subject.

So you get:

• Ek wag = I wait / am waiting
• Jy wag = you wait / are waiting
• Hy wag = he waits / is waiting
• Ons wag = we wait / are waiting

That makes Afrikaans simpler than English in this area. In this sentence, wag stays the same even though the subject is die stapper.

Because wag vir is the normal Afrikaans pattern for wait for someone or something.

So:

• wag = wait
• wag vir ons = wait for us

The word vir often means for, and after wag it is the standard choice when you say who or what is being waited for.

In standard Afrikaans, no. If you mean wait for us, you normally need vir:

• Die stapper wag vir ons. = The walker is waiting for us.

Without vir, the sentence would sound wrong to most learners and in standard usage.

Here it means us.

Afrikaans ons can mean both:

• we as a subject
• us as an object

You tell the difference from the sentence structure.

Examples:

• Ons wag. = We are waiting.
• Hulle sien ons. = They see us.
• Die stapper wag vir ons. = The walker is waiting for us.

Because ons comes after the preposition vir, it is clearly us here.

The sentence follows normal main-clause Afrikaans word order:

Subject + Verb + Rest

So:

• Die stapper = subject
• wag = verb
• vir ons = prepositional phrase

This is very similar to basic English word order:

• The walker / is waiting / for us

It can mean both, depending on context.

Afrikaans often uses the simple present where English might use either:

• waits
• is waiting

So Die stapper wag vir ons can naturally mean:

• The walker waits for us
• The walker is waiting for us

In most everyday contexts, the second translation sounds more natural in English.

Die is capitalized only because it is the first word of the sentence.

Unlike German, Afrikaans does not capitalize all nouns. So normally you would write:

• die stapper
• die man
• die hond

Only the first word of a sentence and proper names are capitalized in the usual way.

A rough English-friendly guide is:

dee STAH-per vakh fir ons

A few notes:

• die sounds roughly like dee
• stapper has stress on the first syllable: STAP-per
• g in wag is a harsh throat sound, not a normal English g
• vir is often pronounced in a reduced way in fast speech
• ons sounds somewhat like ons in English, but with an Afrikaans vowel quality

Exact pronunciation varies a bit by speaker and accent, but this guide is enough to get started.