זה לא סוד שאני עייפה מאוד אחרי העבודה.

Yes, זה often means this or that, but in sentences like זה לא סוד it works much like English it in it’s no secret.

So:

• זה לא סוד = literally this is not a secret
• natural English = it’s no secret

This is a very common Hebrew pattern in general statements:

• זה ברור ש... = it’s clear that...
• זה חשוב ש... = it’s important that...

Because in Hebrew, the verb to be is usually omitted in the present tense.

So:

• אני עייפה = literally I tired
• natural meaning = I am tired

This is normal Hebrew. You do use forms of to be in the past and future, but not usually in the present:

• אני עייפה = I am tired
• הייתי עייפה = I was tired
• אהיה עייפה = I will be tired

שאני is made of two parts:

• ש־ = that
• אני = I

Together, שאני means that I.

So:

• זה לא סוד שאני עייפה = It’s no secret that I’m tired

In writing, ש־ is attached directly to the next word, which is why it appears as one unit: שאני.

Because the speaker is female.

Hebrew adjectives must agree with the gender of the person they describe:

• אני עייפה = I am tired said by a woman
• אני עייף = I am tired said by a man

So this sentence is spoken by a female speaker.
If a male speaker said it, it would be:

זה לא סוד שאני עייף מאוד אחרי העבודה.

In Hebrew, מאוד often comes after the adjective:

• עייפה מאוד = very tired
• יפה מאוד = very beautiful
• קשה מאוד = very difficult

That said, אני מאוד עייפה is also common and natural. Both are possible.

Very roughly:

• אני עייפה מאוד can sound a bit more emphatic on tired
• אני מאוד עייפה is also very common in everyday speech

So the sentence’s wording is completely normal.

Because Hebrew often uses the definite form here where English uses no article.

English says:

• after work

But Hebrew commonly says:

• אחרי העבודה = literally after the work
• natural meaning = after work

So although it looks more definite than the English version, this is the normal Hebrew way to express the idea.

Because אחרי is a separate preposition, and it does not merge with the definite article.

So you get:

• אחרי העבודה = after the work / after work

Compare that with prepositions like ב־, ל־, and כ־, which often combine with ה:

• בעבודה = at work
• לעבודה = to work
• כעובד = as a worker

But אחרי stays separate, so the noun keeps its full article:

• אחרי העבודה
• אחרי הארוחה
• אחרי הסרט

In this sentence, אחרי העבודה most naturally means after work.

The noun עבודה can refer to:

• work in general
• a job
• sometimes the workday or work context

Here it does not usually mean the physical workplace itself.
If you wanted to say after leaving the workplace, you would probably choose a different wording depending on context.

So in this sentence, the best understanding is simply:

• אחרי העבודה = after work

Usually, no—not in natural everyday Hebrew.

In this sentence, ש־ is the normal way to introduce the clause that I’m very tired after work:

• זה לא סוד שאני עייפה מאוד אחרי העבודה.

Using כי here would sound unnatural to most learners’ ears in ordinary modern Hebrew, because כי most often means because. It can sometimes mean that in more formal, biblical, or literary styles, but that is not the normal choice here.

So after זה לא סוד..., use ש־.

Yes, Hebrew word order is somewhat flexible, but changes can affect emphasis or style.

The original sentence:

• זה לא סוד שאני עייפה מאוד אחרי העבודה.

puts the focus on the idea it’s no secret that...

Other possible wordings include:

• זה לא סוד שאחרי העבודה אני עייפה מאוד.
• אני עייפה מאוד אחרי העבודה.

These are not identical in tone:

• זה לא סוד ש... = more like it’s no secret that...
• אני עייפה מאוד אחרי העבודה = a straightforward statement: I’m very tired after work

So yes, the order can change, but the original version has a specific discourse effect.

A common transliteration is:

ze lo sod she-ani ayefa me'od acharei ha-avoda

A rough pronunciation guide:

• זה = zeh
• לא = loh
• סוד = sode
• שאני = sheh-ah-NEE
• עייפה = ah-yeh-FAH
• מאוד = meh-OD
• אחרי = ah-kha-REY
• העבודה = ha-a-vo-DAH

A few notes:

• שאני is really ש + אני
• מאוד has a little break between the vowels: me-od
• ע is often very light or almost silent in many modern Israeli pronunciations

Yes. זה לא סוד is a common idiomatic way to say:

• it’s no secret
• it’s not a secret

It is not strange or overly literal. It is a natural Hebrew expression.

You can use it with many different clauses:

• זה לא סוד שהוא חכם. = It’s no secret that he’s smart.
• זה לא סוד שהם עובדים קשה. = It’s no secret that they work hard.
• זה לא סוד שאני עייפה מאוד אחרי העבודה. = your sentence

So this is a useful pattern worth learning as a chunk.