Мебельный чехол защищает мебель.

The furniture cover protects the furniture.

Breakdown of Мебельный чехол защищает мебель.

• защищать: to protect
• мебель: the furniture
• мебельный чехол: the furniture cover

Questions & Answers about Мебельный чехол защищает мебель.

Why is мебельный written with the ending -ый?

Because мебельный is an adjective, and it has to agree with the noun it describes.

Here it describes чехол, which is:

• masculine
• singular
• nominative

So the adjective also takes the masculine singular nominative form:

• мебельный чехол

If the noun were feminine, neuter, or plural, the adjective would change too:

• мебельная ткань
• мебельное что-нибудь
• мебельные чехлы

Russian adjectives change form much more than English adjectives do.

What does мебельный mean exactly? Is it the same as мебель?

Not exactly.

• мебель = furniture
• мебельный = furniture-related, for furniture, furniture-type

So мебельный чехол is literally something like a furniture cover or a cover for furniture.

This is very common in Russian: a noun becomes an adjective to describe another noun.

Examples:

• музыка → музыкальный
• школа → школьный
• мебель → мебельный

So мебельный is not a separate basic noun; it is an adjective derived from мебель.

Why is чехол in that form?