عندي حمى اليوم.

In Modern Standard Arabic, there is no everyday verb used exactly like English have in this kind of sentence.

Instead, Arabic often expresses possession with a word like عند plus a pronoun suffix. So:

• عندي literally means at me or with me
• idiomatically, it means I have

That is why عندي حمى is the normal way to say I have a fever.

عندي is made of:

• عند = at / with / in the possession of
• ي = me / my

So عندي means at me, which Arabic uses to mean I have.

You do not write a space between عند and ي.

Arabic does not have a separate indefinite article like English a or an.

So a noun by itself can often mean a/an. Here:

• حمى = a fever

If you made it definite with ال, it would become الحمى, meaning the fever or a specific fever already known from context.

In normal pause pronunciation, حمى is pronounced ḥummā.

A few things to notice:

• ح is a deeper, stronger h sound than English h
• مّ means the m is doubled, so you hold it a little longer
• final ى is called alif maqṣūrah, and here it gives a long ā sound

So the word sounds roughly like:

ḥum-mā

A good pronunciation is:

ʿindī ḥummā al-yawm

Broken down:

• عندي = ʿin-dī
• حمى = ḥum-mā
• اليوم = al-yawm

Two sounds may feel unfamiliar:

• ع in عندي has no exact English equivalent
• ح in حمى is deeper than normal English h

If you are a beginner, getting close is fine at first, but these are good sounds to practice.

Because Arabic often uses time words directly as adverbs.

So اليوم by itself already means today. You do not need a preposition such as في here.

This is similar to English when we simply say:

• today
• tomorrow
• yesterday

rather than on today or in today.

Yes, the word order can change.

عندي حمى اليوم is a natural, neutral way to say it.

But Arabic word order is flexible, so you can also move اليوم for emphasis. For example:

• اليوم عندي حمى = emphasizes today
• عندي اليوم حمى = also possible, with a slightly different rhythm or focus

So the basic meaning stays the same, but the emphasis can shift.

Usually, no.

The ي in عندي already tells us the meaning is I / me, so أنا is not necessary.

• عندي حمى اليوم = completely natural
• أنا عندي حمى اليوم = also possible

Adding أنا can give extra emphasis, contrast, or clarity, but it is not required.

Yes, حمى is grammatically feminine.

That matters when you add adjectives or refer to it with agreement. For example:

• عندي حمى شديدة اليوم = I have a severe fever today

Here شديدة is feminine because it agrees with حمى.

So even though the word does not end in ة, it still behaves as a feminine noun.

Yes, but they are not exactly the same in tone or meaning.

• لديّ حمى اليوم = very similar to عندي حمى اليوم; often a bit more formal or written
• أنا مريض اليوم = I am sick today; this is less specific and does not necessarily mean I have a fever

So if you want to mention the exact symptom, عندي حمى اليوم is the best match.

In careful Modern Standard Arabic, you can say:

ليست عندي حمى اليوم

This means I do not have a fever today.

You may also hear forms like ما عندي حمى in spoken Arabic, but that is colloquial rather than standard MSA.