הבחור הוא אוהד.

A natural pronunciation is:

ha-baKHUR hu oHED

• הבחור = ha-baKHUR
• הוא = hu
• אוהד = oHED

The kh sound in בחור is like the ch in German Bach or Scottish loch.

הבחור means the guy, the young man, or sometimes the fellow.

It comes from:

• בחור = guy / young man
• ה־ = the

So:

• בחור = a guy / guy
• הבחור = the guy

In everyday Hebrew, בחור is a very common word for a male person, often younger or just spoken of casually.

The letter ה־ at the beginning is the Hebrew definite article, meaning the.

So:

• בחור = guy
• הבחור = the guy

Hebrew usually attaches the directly to the noun, instead of writing it as a separate word.

Because Hebrew has no separate indefinite article. In other words, Hebrew does not have a word that directly matches English a or an.

So:

• אוהד can mean a fan
• האוהד means the fan

In this sentence, אוהד is indefinite, so the meaning is a fan, not the fan.

Literally, הוא means he. But in sentences like this, it often works like a linking word between two parts of the sentence, somewhat like is.

So in:

הבחור הוא אוהד

the word הוא helps connect:

• הבחור = the subject
• אוהד = the description/classification

Modern Hebrew often leaves out the present-tense verb to be, but a pronoun like הוא or היא is often used in sentences of this kind, especially when it makes the sentence clearer.

Here, אוהד is a noun, meaning fan or supporter.

But this is a very good question, because the same spelling can also be understood as a verb form meaning supports / is a fan of.

Compare:

• הבחור הוא אוהד = The guy is a fan
• הבחור אוהד את הקבוצה = The guy supports the team

So the sentence you were given uses אוהד as a noun, but Hebrew spelling without vowel marks can create this kind of ambiguity.

Sometimes Hebrew does omit the linking word in present-tense sentences, but here הוא is helpful and natural.

If you say:

הבחור אוהד

it may sound incomplete or be understood as the beginning of a verbal sentence, like:

• The guy supports...

So in this sentence, הוא helps make it clear that אוהד means fan, not supports.

Because the sentence means:

The guy is a fan

not:

The guy is the fan

Hebrew marks this difference clearly:

• הבחור הוא אוהד = The guy is a fan
• הבחור הוא האוהד = The guy is the fan

So the absence or presence of ה־ matters a lot.

The linking pronoun and the noun would change to match gender and number.

Examples:

• הבחורה היא אוהדת = The girl is a fan
• הבחורים הם אוהדים = The guys are fans
• הבחורות הן אוהדות = The girls are fans

So you should notice agreement in:

• the pronoun: הוא / היא / הם / הן
• the noun: אוהד / אוהדת / אוהדים / אוהדות

Yes. אוהד can also be the male name Ohad.

So without vowel marks, the written form is ambiguous:

• אוֹהֵד = fan / supporter
• אוֹהַד = Ohad (the name)

Usually context tells you which one is meant. In your sentence, since the meaning is already given, it is being used as fan.

In past and future, Hebrew uses forms of to be more directly.

Examples:

• הבחור היה אוהד = The guy was a fan
• הבחור יהיה אוהד = The guy will be a fan

This is useful because in the present tense, Hebrew often has no ordinary spoken word exactly matching English is, which is why sentences like this can feel unusual to English speakers at first.