La bomba de aire está aquí.

Because bomba is a feminine noun in Spanish. Singular feminine nouns normally take la.

• la bomba
• el libro

The gender is grammatical, so you usually just have to learn it with the noun.

Yes. Bomba can mean different things depending on context, including bomb and pump. In bomba de aire, it means air pump.

This is very common in Spanish: the same noun can have more than one meaning, and the rest of the phrase tells you which one is intended.

De often means of or for, but in noun phrases it is also commonly used to show what something is related to or used for.

So:

• bomba de aire = air pump
• literally, something like pump of air

Spanish often uses noun + de + noun where English prefers noun + noun or an adjective.

Spanish has two main verbs for to be: ser and estar.

Here, está is used because the sentence is talking about location:

• La bomba de aire está aquí. = it is located here

A good basic rule is:

• use estar for location
• use ser for identity, origin, profession, and similar ideas

So es aquí would sound wrong in this sentence.

Because Spanish usually does not need subject pronouns when the verb already shows who or what the subject is.

In está, the form already matches a singular subject, and the noun la bomba de aire is explicitly stated, so adding ella would be unnecessary.

Spanish often leaves out subject pronouns unless they are needed for emphasis or clarity.

The accent mark in está shows the correct stress: es-TÁ.

It also helps distinguish this verb form from esta, which can be a demonstrative adjective in some contexts, as in esta bomba = this pump.

So the written accent is important for both pronunciation and meaning.

The accent mark shows that the stress falls on the last syllable: a-QUÍ.

Without the accent, the word would not follow normal spelling expectations. In Spanish, accent marks are often used to show where the stress goes when it is not predictable from the usual rules.

Yes. Aquí está la bomba de aire is completely natural.

Both versions are correct:

• La bomba de aire está aquí.
• Aquí está la bomba de aire.

The difference is mainly focus:

• La bomba de aire está aquí emphasizes the air pump
• Aquí está la bomba de aire emphasizes here

Spanish word order is more flexible than English, especially with adverbs like aquí.

A simple pronunciation guide is:

lah BOM-bah deh AI-reh es-TAH ah-KEE

A few notes for Spain Spanish:

• b in bomba is a soft Spanish b
• de is pronounced roughly deh
• aire has two syllables: AI-re
• está is stressed on the last syllable
• aquí is stressed on the last syllable

In standard Spain pronunciation, this sentence does not contain the z or soft c sound that English speakers often ask about, so it is fairly straightforward.

No. Bomba de aire is correct and understandable, but depending on the exact object and region, Spanish speakers may also say things like inflador or hinchador.

For example, for a bicycle pump, someone might naturally use another term. But for learning purposes, bomba de aire is a perfectly good phrase and clearly understood.

Sometimes, yes, but in Spain Spanish, aquí is generally the more standard and common choice for here in a sentence like this.

• aquí = here
• acá can also mean here, but it is used differently depending on the region

If you are focusing on Spanish from Spain, aquí is the safest option.