מנעול הצירופים הוא לא מנעול תלייה.

Because this is a construct chain in Hebrew, called סמיכות.

• מנעול = lock
• הצירופים = the combinations

When two nouns are put together this way, the first noun is understood as belonging to or being defined by the second noun. So:

• מנעול הצירופים literally looks like lock of the combinations
• but in natural English it means the combination lock

This is very common in Hebrew. English often uses X of Y, Y X, or a special compound noun, depending on what sounds natural.

Examples:

• בית ספר = school, literally house of book
• כרטיס אשראי = credit card, literally card of credit

So here, מנעול הצירופים is just the normal Hebrew way to say combination lock.

Because in a construct chain, the first noun usually does not take the definite article directly.

So even though the whole phrase is definite, the definiteness is shown on the second noun:

• מנעול הצירופים = the combination lock
• not המנעול הצירופים

In other words, when the second noun is definite, the whole chain becomes definite.

Compare:

• מנעול צירופים = a combination lock
• מנעול הצירופים = the combination lock

This is a very important pattern in Hebrew grammar.

Because Hebrew often uses a plural noun where English uses a singular modifier.

Here:

• צירוף = combination / combination of symbols or numbers
• צירופים = combinations

A combination lock works through a set of possible combinations, so Hebrew uses צירופים naturally in the plural.

Even if English says combination lock, Hebrew may prefer a structure that literally looks more like lock of combinations.

הוא here acts like the word is.

Hebrew usually does not use a separate verb to be in the present tense the way English does. But when the sentence is:

• noun + noun
• noun + adjective
• noun + pronoun

Hebrew often inserts a pronoun such as הוא or היא to connect the two parts clearly.

So:

• מנעול הצירופים הוא לא מנעול תלייה = The combination lock is not a padlock

Without הוא, the sentence might sound less clear or less natural in many contexts.

This הוא is sometimes called a copular pronoun.

Because לא is the normal Hebrew word for not in ordinary present and future negation.

So:

• הוא לא מנעול תלייה = it is not a padlock

Hebrew does not need a separate word like English does in a sentence like it does not equal... or it is not.... You simply use לא before the part being negated.

Here the structure is:

• subject: מנעול הצירופים
• connector: הוא
• negation: לא
• predicate noun: מנעול תלייה

Because Hebrew does not have an indefinite article like English a/an.

So:

• מנעול תלייה can mean a padlock
• if you wanted the padlock, you would make the phrase definite

Since the sentence is making a general classification:

• The combination lock is not a padlock

the second noun is indefinite in Hebrew, just as in English.

Also, מנעול תלייה is another construct chain:

• מנעול = lock
• תלייה = hanging

So literally it is something like a hanging lock, which corresponds to a padlock.

Literally, it means something like a hanging lock or lock for hanging.

• מנעול = lock
• תלייה = hanging / suspension

This is the Hebrew term for a padlock, since a padlock is the kind of lock that hangs from something rather than being built into a door.

So although the literal meaning may sound unusual in English, it is just the normal Hebrew expression for padlock.

Hebrew repeats מנעול because the sentence is comparing two different kinds of locks:

• מנעול הצירופים = combination lock
• מנעול תלייה = padlock

Repeating the noun keeps the contrast clear and natural. Hebrew could sometimes shorten things in another context, but here the repetition is straightforward and idiomatic.

It is similar to English:

• A combination lock is not a padlock

English also repeats lock indirectly through two compound nouns.

A reasonable pronunciation is:

man'ul ha-tzirufim hu lo man'ul tliya

A rough breakdown:

• מנעול = man'ul
• הצירופים = ha-tzirufim
• הוא = hu
• לא = lo
• מנעול תלייה = man'ul tliya

A few pronunciation notes:

• צ in צירופים sounds like ts
• עי/א in מנעול can make the word feel slightly broken into syllables, roughly man-UL or ma-NOOL depending on accent and transliteration style
• תלייה is approximately tli-YA

Yes. This is completely normal Hebrew.

In the present tense, Hebrew often has no separate verb "to be". Instead, it can use:

• no connector at all in some sentences, or
• a pronoun like הוא for clarity

So this is a standard present-tense nominal sentence.

Past and future work differently:

• היה = was
• יהיה = will be

But in the present, Hebrew commonly says things in a structure like this:

• X הוא לא Y
• X is not Y

Yes. Depending on context, Hebrew can use a definite noun phrase to refer to:

• a specific item already known from context, or
• a whole category in a generic way

So מנעול הצירופים הוא לא מנעול תלייה can mean either:

• The combination lock is not a padlock or more generally
• A combination lock is not a padlock

If the meaning has already been shown to the learner, the exact choice in English depends on context. The Hebrew sentence itself can support either kind of reading.