फार्मासिस्ट शाम तक काम करता है।

तक means until, up to, or as far as.

In शाम तक, it means until evening or up to evening.

So:

• शाम = evening
• शाम तक = until evening / till evening

This tells you the time limit of the action.

In Hindi, काम करना is a very common expression meaning to work or literally to do work.

So:

• काम = work
• करना = to do
• काम करना = to work

This kind of expression is extremely common in Hindi. Hindi often uses a noun + करना where English uses a single verb.

Examples:

• फ़ोन करना = to call / to phone
• सफ़र करना = to travel
• कोशिश करना = to try

So काम करता है literally means does work, but naturally it means works.

Because करता है is the masculine singular form.

Hindi verbs in this kind of sentence agree with the subject. If the subject is a singular masculine noun, you use:

• करता है = he does / he works

If the subject were singular feminine, you would say:

• करती है = she does / she works

So:

• फार्मासिस्ट शाम तक काम करता है। = The male pharmacist works until evening.
• फार्मासिस्ट शाम तक काम करती है। = The female pharmacist works until evening.

If you do not know the person’s gender, the masculine form is often used by default in many learning examples, though real-life usage depends on context.

This is the habitual present form, often used like the English simple present.

It usually describes:

• a habit
• a routine
• a general fact

So फार्मासिस्ट शाम तक काम करता है means something like:

• The pharmacist works until evening.
• The pharmacist usually works until evening.

It does not strongly mean is working right now.

If you want to say is working right now, Hindi usually uses:

• फार्मासिस्ट शाम तक काम कर रहा है। = The pharmacist is working until evening.

In this sentence, करता by itself is not enough for a normal present-tense statement. Hindi usually uses the habitual form together with है.

So:

• करता = doing / does as a habitual form
• करता है = works / does

The है helps complete the present-tense meaning.

Compare:

• वह काम करता है। = He works.
• वह काम करती है। = She works.

Without है, the sentence would normally sound incomplete in standard Hindi.

Hindi word order is often Subject + Time/Other information + Verb.

So here:

• फार्मासिस्ट = subject
• शाम तक = time expression
• काम करता है = verb phrase

A very natural Hindi order is:

• The pharmacist + until evening + works

This is different from English, where the verb usually comes earlier:

• The pharmacist works until evening.

Hindi usually saves the main verb for the end.

Yes, फार्मासिस्ट is basically a borrowed word from English pharmacist.

Hindi uses many English loanwords, especially for jobs, technology, medicine, and modern life.

So फार्मासिस्ट is perfectly normal Hindi usage.

You may also hear other related words depending on context, such as:

• दवाइयों वाला in very informal speech
• केमिस्ट in Indian English/Hindi contexts, sometimes meaning the person or the shop

But फार्मासिस्ट is a straightforward and standard way to say pharmacist.

Hindi does not have articles like a, an, and the.

So फार्मासिस्ट can mean:

• the pharmacist
• a pharmacist

You understand which one is meant from context.

That is very common in Hindi. Many Hindi sentences leave this kind of detail unstated unless it is important.

Sometimes तक can feel close to by in English, but in this sentence until evening is the most natural meaning.

Why?

Because the action is काम करता है = works, which is something continuing over time. So शाम तक here suggests the work continues up to evening.

Compare:

• वह शाम तक काम करता है। = He works until evening.
• वह शाम तक आएगा। = He will come by evening.

So the exact English translation depends on the verb and context.

Yes, but it means something different.

• काम करता है = works / usually works / habitually works
• काम कर रहा है = is working / is in the process of working

So:

• फार्मासिस्ट शाम तक काम करता है। = The pharmacist works until evening.
  This sounds like a routine or general schedule.

• फार्मासिस्ट शाम तक काम कर रहा है। = The pharmacist is working until evening.
  This sounds more like a current situation.

It can be either, depending on context.

It might mean:

• a general statement about a pharmacist
• a specific pharmacist already known in the conversation

For example:

• यह फार्मासिस्ट शाम तक काम करता है। = This pharmacist works until evening.
• एक फार्मासिस्ट शाम तक काम करता है। = A pharmacist works until evening.

But even without यह or एक, Hindi often leaves that open and lets context decide.

The verb would change to match gender and number.

Examples:

• फार्मासिस्ट शाम तक काम करती है।
  = The female pharmacist works until evening.

• फार्मासिस्ट शाम तक काम करते हैं।
  = The pharmacists work until evening.
  or
  = The pharmacist works until evening.
  if you are using respectful singular for one person

This is an important feature of Hindi: the verb form often tells you about gender, number, and sometimes respect level.