Το γαζί είναι ίσιο.

• Το = the (neuter singular definite article)
• γαζί = stitch / seam / line of stitching
• είναι = is
• ίσιο = straight

So grammatically, the structure is:

article + noun + is + adjective

That is very similar to English: The stitch is straight.

Το is the neuter singular definite article. It is used because γαζί is a neuter singular noun.

Greek articles change for gender, number, and case, so you cannot just use one form of the for everything.

Here are the singular nominative forms of the:

• ο for masculine
• η for feminine
• το for neuter

Since γαζί is neuter, Greek uses το γαζί.

Yes. γαζί is neuter.

Some useful forms are:

• το γαζί = the stitch / the seam
• ένα γαζί = a stitch
• τα γαζιά = the stitches / the seams

So if you change the noun, the article changes with it.

Because the adjective must agree with γαζί, and γαζί is neuter singular.

The adjective ίσιος has different forms:

• ίσιος = masculine singular
• ίσια = feminine singular
• ίσιο = neuter singular

So:

• Ο δρόμος είναι ίσιος. = The road is straight.
• Η γραμμή είναι ίσια. = The line is straight.
• Το γαζί είναι ίσιο. = The stitch is straight.

Even though ίσιο comes after είναι, it still agrees with the noun.

It is in the nominative case, because it is the subject of the sentence.

In a sentence with είναι (is), both the subject and the predicate adjective are normally in the nominative:

• Το γαζί = subject, nominative
• ίσιο = predicate adjective, matching the subject

So this is a very standard Greek sentence pattern.

In normal everyday Greek, no—you usually keep είναι in a full sentence like this.

So the natural sentence is:

• Το γαζί είναι ίσιο.

Leaving out είναι would sound incomplete in ordinary speech, except in special styles like notes, labels, headlines, or very informal shorthand.

Yes, Greek word order is more flexible than English, although Το γαζί είναι ίσιο is the most neutral order.

You may also hear:

• Είναι ίσιο το γαζί.
• Ίσιο είναι το γαζί.

These can sound more emphatic or context-dependent, as if you are stressing straight or contrasting it with something else.

For a learner, the safest basic version is:

• Το γαζί είναι ίσιο.

A rough pronunciation guide is:

to gha-ZEE EE-ne EE-syo

A few notes:

• γαζί has the stress on the last syllable: γα-ΖΙ
• είναι is pronounced roughly EE-ne
• ίσιο is pronounced roughly EE-syo

The Greek letter γ in γαζί is not a hard English g like in go. It is a softer sound, somewhat like the Spanish g in lago.

The accent mark shows which syllable gets the stress.

• γαζί → stress on ζί
• ίσιο → stress on ί

Stress matters in Greek, so learners should pay attention to it when reading and speaking.

Yes. For something like a stitch, seam, line, or piece of sewing, ίσιο is a very natural everyday choice.

Greek also has other words that can translate as straight, but ίσιος / ίσια / ίσιο is the common and straightforward one in this kind of context.

So Το γαζί είναι ίσιο sounds natural and ordinary.

To make it negative, add δεν before είναι:

• Το γαζί δεν είναι ίσιο. = The stitch is not straight.

To make it a yes/no question, Greek usually just changes intonation in speech:

• Το γαζί είναι ίσιο; = Is the stitch straight?

You may also hear:

• Είναι ίσιο το γαζί;

Both are possible.