तौलिया साफ है।

A word-by-word breakdown is:

• तौलिया = towel
• साफ = clean
• है = is

So the whole sentence means The towel is clean or A towel is clean, depending on context.

Hindi usually does not use articles like English a, an, and the.

So तौलिया साफ है। can mean:

• The towel is clean
• A towel is clean

Which one sounds best depends on the situation and context.

Hindi often puts things in this order:

• subject + description + is/are

So:

• तौलिया = subject
• साफ = description
• है = is

That is why Hindi says:

• तौलिया साफ है।

Literally: towel clean is

This is a very normal Hindi sentence pattern.

है is the present-tense form of to be for a singular subject in sentences like this.

In this sentence, it works like English is:

• तौलिया साफ है। = The towel is clean.

You will see है very often in simple descriptive sentences.

For example:

• कमरा बड़ा है। = The room is big.
• पानी ठंडा है। = The water is cold.

Because साफ is an adjective that usually stays the same in this kind of sentence.

Some Hindi adjectives change depending on gender and number, but some do not.

• साफ is one that normally stays unchanged.
• So you say:
  • तौलिया साफ है।
  • कमीज़ साफ है।
  • कपड़े साफ हैं।

By contrast, an adjective like छोटा does change:

• तौलिया छोटा है। = The towel is small.
• कमीज़ छोटी है। = The shirt is small.

So साफ is nice for learners because it stays stable.

तौलिया is normally masculine.

In this particular sentence, that does not visibly affect साफ, because साफ does not change here.

But gender does matter elsewhere in Hindi. For example, if you used a changing adjective:

• तौलिया गीला है। = The towel is wet.
  (गीला is masculine singular)

If the noun were feminine, the adjective would change:

• कमीज़ गीली है। = The shirt is wet.

So yes, तौलिया is masculine, and that can matter in other sentences.

A simple pronunciation guide is:

• तौलिया = tau-li-yā
• साफ = sāf
• है = hai

So together:

• tau-li-yā sāf hai

A few quick notes:

• तौ sounds roughly like tau in taunt or like ow in cow, depending on accent.
• साफ has a long aa sound: saaf
• है is usually pronounced like hai

In standard Hindi, तौलिया साफ है। is the normal complete sentence.

If you say just:

• तौलिया साफ।

it may sound incomplete in standard speech, though in casual conversation people sometimes drop है when speaking quickly or informally.

For learners, it is best to keep है:

• तौलिया साफ है।

You add नहीं before है:

• तौलिया साफ नहीं है। = The towel is not clean.

This is a very common pattern:

• कमरा बड़ा नहीं है। = The room is not big.
• पानी ठंडा नहीं है। = The water is not cold.

There are two common easy ways.

1. Use your voice/intonation in speech:

   • तौलिया साफ है? = Is the towel clean?

2. Add क्या at the beginning:

   • क्या तौलिया साफ है? = Is the towel clean?

Both are natural. For beginners, the क्या ... है? pattern is especially useful.

You make both the noun and the verb plural:

• तौलिये साफ हैं। = The towels are clean.

Here:

• तौलिये = towels
• साफ = clean (unchanged)
• हैं = are

So compare:

• तौलिया साफ है। = The towel is clean.
• तौलिये साफ हैं। = The towels are clean.

No. साफ is the most common everyday word and is very natural here.

You may also see स्वच्छ, which also means clean, but it is more formal.

So:

• तौलिया साफ है। = normal everyday Hindi
• तौलिया स्वच्छ है। = more formal

For daily conversation, साफ is the best choice.