קוד הכניסה פותח את דלת מתקן האחסון.

Because the verb agrees with the main noun of the subject, not with every noun inside the phrase.

The subject here is קוד הכניסה. The head noun is קוד, and קוד is masculine singular. So the verb is also masculine singular: פותח.

כניסה is part of the phrase modifying קוד. It does not control the verb.

So the agreement is:

• קוד → masculine singular
• פותח → masculine singular

If the subject were a feminine singular noun, you would expect פותחת instead.

פותח is the masculine singular present-tense form of the verb לפתוח, meaning to open.

In Modern Hebrew, present-tense verb forms also function a bit like participles, so פותח can mean:

• opens
• is opening
• sometimes opening, depending on context

In this sentence, it is most naturally understood as opens.

Related forms:

• פותחת — feminine singular
• פותחים — masculine plural
• פותחות — feminine plural

את marks a definite direct object.

Here, the thing being opened is דלת מתקן האחסון, and that whole noun phrase is definite, so Hebrew uses את before it.

That is why the sentence has:

פותח את דלת מתקן האחסון

A very important point: את does not mean with here. It is just a grammatical marker showing that the following noun phrase is a definite direct object.

If the object were indefinite, Hebrew usually would not use את.

This is a construct chain, called סמיכות in Hebrew.

In a construct chain, two nouns are linked together, often corresponding to English X of Y or a compact noun-noun phrase like entry code.

So:

• קוד הכניסה = the entry code
• literally something like code of the entry

In this structure, the first noun usually does not take ה־ directly. The definiteness is shown on the second noun, and that makes the whole phrase definite.

So:

• קוד כניסה = an entry code or entry code
• קוד הכניסה = the entry code

That is why הקוד הכניסה is not the normal form here.

For the same reason: this is also a construct chain.

The phrase is built like this:

• דלת = door
• מתקן האחסון = the storage facility / storage unit

Together:

דלת מתקן האחסון = the door of the storage facility

In a construct chain, the first noun normally does not get ה־. The definiteness comes later in the chain.

Because האחסון is definite, the whole phrase is definite.

So even though the meaning is the door, Hebrew says:

• דלת מתקן האחסון

not:

• הדלת מתקן האחסון

A different, less compact wording would be:

• הדלת של מתקן האחסון

That is also possible, but the version with construct state is tighter and very natural.

מתקן האחסון is another noun phrase in construct.

• מתקן can mean facility, installation, unit, device, or apparatus, depending on context.
• האחסון means the storage.

So together, מתקן האחסון means something like:

• the storage facility
• the storage unit
• the storage installation

The exact English wording depends on context, but grammatically the phrase is straightforward: it is a noun plus another noun that specifies what kind of facility it is.

Yes. This is very normal Modern Hebrew word order.

The sentence is:

• קוד הכניסה — subject
• פותח — verb
• את דלת מתקן האחסון — direct object

So it follows a common subject–verb–object pattern.

Hebrew can sometimes use verb-first order, especially in more literary styles or in certain contexts, but this sentence is a very standard everyday structure.

Yes. In Modern Hebrew, the present-tense form often covers both a simple present meaning and a progressive meaning.

So פותח can mean:

• opens
• is opening

Context tells you which is intended.

In a sentence like this one, the most natural reading is usually a general or functional meaning: the code opens the door. In other words, it describes what the code does, not necessarily an action happening at this exact moment.

A simple pronunciation guide is:

kod ha-kni-SA po-TE-ach et DE-let mat-KEN ha-ach-SON

A few notes:

• כניסה is stressed on the last syllable: ha-kni-SA
• פותח is stressed on the second syllable: po-TE-ach
• מתקן is stressed on the second syllable: mat-KEN
• האחסון is stressed on the last syllable: ha-ach-SON

The letter ח in פותח and האחסון is a throaty sound, like the ch in Scottish loch or German Bach, not the English ch in chair.