एकतरफ़ा टिकट सस्ता है।

एकतरफ़ा means one-way in this sentence, as in a one-way ticket.

Literally, it is built from:

• एक = one
• तरफ़ = side/direction

So the basic idea is one-sided or in one direction only, which becomes one-way in normal English.

In Hindi, adjectives usually come before the noun they describe, just as in English.

So:

• एकतरफ़ा टिकट = one-way ticket

This is the normal order:

• adjective + noun

है is the present-tense form of the verb to be for this kind of sentence. Here it means is.

So:

• सस्ता है = is cheap

A very common Hindi sentence pattern is:

• noun + adjective + है

For example:

• घर बड़ा है। = The house is big.
• टिकट सस्ता है। = The ticket is cheap.

Because टिकट is treated as a masculine noun in Hindi, and the adjective agrees with it.

So:

• masculine singular: सस्ता
• feminine singular: सस्ती

Since टिकट is masculine singular, Hindi uses:

• टिकट sasta hai → टिकट सस्ता है।

If the noun were feminine, you would use सस्ती instead.

This is something learners often just have to learn along with the noun. Many borrowed nouns in Hindi, including टिकट, are commonly treated as masculine.

You can often tell from agreement:

• टिकट सस्ता है shows masculine agreement
• if it were feminine, you would expect सस्ती

So in practice, the sentence itself helps teach you the gender.

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

So:

• एकतरफ़ा टिकट सस्ता है।

can mean:

• A one-way ticket is cheap
• The one-way ticket is cheap

The exact English article depends on context. Hindi often leaves that unstated.

Inside एकतरफ़ा, yes, it originally comes from one. But in this sentence, you should understand एकतरफ़ा as a single vocabulary item meaning one-way.

So this is not the same as saying:

• एक टिकट = one ticket

Instead, it is:

• एकतरफ़ा टिकट = one-way ticket

This is the most natural neutral order.

Hindi word order is often described as Subject/Object + predicate + verb, with the verb typically near the end. In this sentence:

• एकतरफ़ा टिकट = the thing being talked about
• सस्ता = the description
• है = is

So the standard pattern is:

• एकतरफ़ा टिकट सस्ता है।

Other orders may appear in conversation for emphasis, but this is the normal one learners should use.

You usually place नहीं before है:

• एकतरफ़ा टिकट सस्ता नहीं है।

That is the basic negative pattern:

• adjective + नहीं है

Examples:

• यह अच्छा है। = This is good.
• यह अच्छा नहीं है। = This is not good.

Then both the adjective and the verb would normally change:

• एकतरफ़ा टिकट सस्ते हैं। = One-way tickets are cheap.

Here:

• सस्ता → सस्ते for masculine plural
• है → हैं for plural

So singular:

• एकतरफ़ा टिकट सस्ता है।

Plural:

• एकतरफ़ा टिकट सस्ते हैं।

That punctuation mark is called the danda. It is often used in Hindi in place of an English full stop.

So:

• एकतरफ़ा टिकट सस्ता है।

ends with ।, which functions like .

In modern informal writing, many people also use the regular period, especially online, but । is the traditional punctuation mark.

फ़ represents an f sound, so तरफ़ा is pronounced with f, not plain ph in careful pronunciation.

So एकतरफ़ा sounds roughly like:

• ek-tar-fa

However, in everyday speech, some speakers do not strongly distinguish फ़ from फ, depending on accent and background. But for learners, pronouncing it with f is a good target.