موظف الاستقبال في الردهة.

Most naturally, it is a complete present-tense nominal sentence in MSA:

موظف الاستقبال = the receptionist
في الردهة = in the lobby

So the structure is essentially:

[subject] + [prepositional phrase predicate]

Arabic does not need a verb like is here, so this can stand as a full sentence meaning The receptionist is in the lobby.

In Arabic, the verb to be is usually not expressed in the present tense.

So English The receptionist is in the lobby becomes simply:

موظف الاستقبال في الردهة

If you wanted the past, you would normally use كان:

كان موظف الاستقبال في الردهة = The receptionist was in the lobby

This omission of is/am/are in the present tense is one of the most common differences English speakers notice.

This is an iḍāfa construction, often called a construct phrase.

Literally, it is:

موظف = employee
الاستقبال = the reception

So word-for-word it is:

employee of the reception

In natural English, that becomes receptionist or front-desk employee.

Arabic very often expresses ideas like this with noun + noun, instead of using a separate word like of.

Because in an iḍāfa construction, the first noun normally does not take ال.

So Arabic says:

موظف الاستقبال

not:

الموظف الاستقبال

The whole phrase becomes definite because the second noun, الاستقبال, is definite.

So even though موظف by itself has no ال, the full phrase موظف الاستقبال means the receptionist.

A useful rule:

• first noun in iḍāfa: no ال
• second noun determines whether the whole phrase is definite or indefinite

Because Arabic usually expresses of-relationships through iḍāfa, not by inserting a separate word.

So:

موظف الاستقبال literally works as employee the-reception, but the grammar tells you to understand it as:

employee of the reception

This is extremely common in Arabic:

• باب البيت = the door of the house
• مدير المدرسة = the principal of the school
• موظف الاستقبال = the receptionist

So if you are looking for a word meaning of, in this kind of phrase there usually is none.

In careful, fully inflected MSA, the sentence would be read roughly as:

موظفُ الاستقبالِ في الردهةِ

Here is why:

• موظفُ is nominative because it is the subject
• الاستقبالِ is genitive because it is the second term of an iḍāfa
• الردهةِ is genitive because it comes after the preposition في

In normal writing, these short vowel endings are usually not written, and in pause they are often not pronounced fully either.

It is pronounced muwaẓẓaf.

With full vocalization, it would be:

مُوَظَّف

This shows two things that ordinary Arabic spelling often leaves out:

• the short vowels
• the shadda on ظ, which means that consonant is doubled

So learners often need to know the pronunciation from a dictionary, audio, or prior study, not from the bare spelling alone.

Because ر is a sun letter.

When ال comes before a sun letter, the ل sound is not pronounced, and the following consonant is doubled in pronunciation.

So:

الردهة

is pronounced approximately:

ar-rudhah

not:

al-rudhah

The spelling does not change, only the pronunciation changes.

So the whole phrase في الردهة is pronounced roughly:

fi r-rudhah

Yes, موظف is grammatically masculine singular.

If the receptionist is female, you would normally say:

موظفة الاستقبال في الردهة

So:

• موظف = male employee / male receptionist
• موظفة = female employee / female receptionist

In some contexts, masculine forms can be used more generally, but on its own موظف normally suggests a male person.