Voda je jedan metar iznad poda.

Croatian does not have articles, so there is no separate word for the or a/an.

That means:

• voda can mean water or the water
• pod can mean floor or the floor

Context tells you whether the meaning is definite or indefinite. In this sentence, English naturally uses the water and the floor, but Croatian does not need to mark that explicitly.

Voda is in the nominative singular because it is the subject of the sentence.

A few useful points:

• dictionary form: voda
• gender: feminine
• number: singular

Even though water is a substance, Croatian still treats voda as grammatically singular here, just like English usually does.

Je is a clitic form of the verb biti (to be), and Croatian clitics usually go in the second position of the clause.

So the neutral order is:

• Voda je ...

This is a very common Croatian pattern. It is not just random word order: short unstressed words like je tend to appear near the beginning, usually after the first stressed element or phrase.

Here jedan really means the number one. The sentence is giving an exact measurement: one meter.

Croatian has no article system, so jedan is not required as an equivalent of a. In some contexts jedan can feel a bit like a certain or one, but in this sentence it is simply the numeral.

Because after jedan, the noun is singular:

• jedan metar = one meter

Compare:

• dva metra = two meters
• tri metra = three meters
• četiri metra = four meters
• pet metara = five meters

So the pattern is:

• 1 → metar
• 2, 3, 4 → metra
• 5+ → metara

Also, jedan agrees with metar in gender, number, and case.

Iznad is a preposition meaning above.

In Croatian, iznad takes the genitive case, so the noun after it must be in genitive:

• iznad poda = above the floor

It expresses position at a higher level than something else.

Yes. Poda is the genitive singular of the noun pod, which means floor.

So:

• nominative: pod
• genitive: poda

Because iznad requires the genitive, you get iznad poda.

This sometimes confuses learners because Croatian also has a preposition pod meaning under. But here poda is clearly the noun pod in the genitive, not the preposition.

Yes, that is possible and natural in everyday speech.

Both can be used:

• Voda je jedan metar iznad poda.
• Voda je metar iznad poda.

Including jedan sounds a bit more explicit and careful. Omitting it is common when the measurement itself is clear from context.

Croatian word order is more flexible than English word order, but not every rearrangement sounds equally natural.

The most neutral version is:

• Voda je jedan metar iznad poda.

You can move parts of the sentence for emphasis, but then the sentence may sound marked or stylistically special. Also, the clitic je still tends to stay in second position.

So for a learner, the safest version is the original one.

Negative:

• Voda nije jedan metar iznad poda.

Question:

• Je li voda jedan metar iznad poda?

You may also hear more colloquial spoken versions, but Je li ... ? is the standard way to form a yes/no question.