50 Words That Change Between Formal And Street Farsi

Q: What is the difference between formal and informal Farsi?

Formal Farsi (کتابی, ketâbi) is the written, "bookish" register used in news, literature, and official contexts. Informal Farsi (محاورهای, mohâvere-i) is the spoken register used in daily conversation. The differences include shortened verbs, different pronouns, vocabulary swaps, and dropped particles. Both are correct. they serve different social contexts.

Notebook split between neat formal Persian writing and casual street Farsi scribbles

I had a student in Milan. smart woman, six months into Farsi. who walked into a bakery in Tehran and asked for bread using the word نان (nân). The baker understood her. But her Iranian friend laughed because she’d used the formal register in a neighborhood bakery, like ordering a croissant in Latin. The street word? Also نون (nun). One vowel shift, one social signal. Persian is full of these.

Here are 50 words where formal and colloquial Farsi diverge. the words your textbook taught you vs. the words you’ll actually hear on the streets of Tehran, Isfahan, and Shiraz. If you’re wondering why this gap exists in the first place, start with our guide to spoken vs. written Persian.

Greetings and Social Words

English	Formal (کتابی)	Transliteration	Colloquial (محاوره‌ای)	Transliteration
Yes	بله	bale	آره	âre
No	خیر	kheyr	نه	na
Please	لطفاً	lotfan	لطفاً	lotfan (same, but tone shifts)
Excuse me	ببخشید	bebakhshid	ببخشید	bebakhshid (same)
Thank you	ممنونم / متشکرم	mamnunam / moteshakeram	مرسی / دمت گرم	mersi / damet garm
Goodbye	خداحافظ	khodâhâfez	خدافظ / بای	khodâfez / bây
How are you?	حال شما چطور است؟	hâl-e shomâ chetor ast?	چطوری؟ / خوبی؟	chetori? / khubi?
I’m fine	خوب هستم	khub hastam	خوبم	khubam

Common Verbs (Infinitive and Conjugated)

English	Formal (کتابی)	Transliteration	Colloquial (محاوره‌ای)	Transliteration
I want	می‌خواهم	mikhâham	می‌خوام	mikhâm
I go	می‌روم	miravam	میرم	miram
I come	می‌آیم	mi’âyam	میام	miyâm
I say	می‌گویم	miguyam	میگم	migam
I give	می‌دهم	midaham	میدم	midam
He/she goes	می‌رود	miravad	میره	mire
They go	می‌روند	miravand	میرن	miran
To speak	صحبت کردن	sohbat kardan	حرف زدن	harf zadan
To look	نگاه کردن	negâh kardan	نگا کردن	negâ kardan
To put	گذاشتن	gozâshtan	گذاشتن	gozâshtan (same, but pronounced gozâshtan → gozâshtan)

For the complete verb contraction system. every tense, every person. see Persian Verb Contractions: The Complete Guide.

Pronouns and Demonstratives

English	Formal (کتابی)	Transliteration	Colloquial (محاوره‌ای)	Transliteration
That	آن	ân	اون	un
This	این	in	این	in (same)
Those / They	آنها	ânhâ	اونا	unâ
You (formal)	شما	shomâ	شما	shomâ (same)
You (informal)	تو	to	تو	to (same)
Someone	کسی	kasi	یکی	yeki
Something	چیزی	chizi	یه چیزی	ye chizi

Time Words

English	Formal (کتابی)	Transliteration	Colloquial (محاوره‌ای)	Transliteration
Now	اکنون	aknun	الان	alân
Then / After	سپس	sepas	بعدش	ba’desh
Today	امروز	emruz	امروز	emruz (same)
Tomorrow	فردا	fardâ	فردا	fardâ (same)
Still / Yet	هنوز	hanuz	هنوز	hanuz (same)
Already	قبلاً	qablan	قبلاً / از قبل	qablan / az qabl
Soon	به‌زودی	be zudi	یه کم دیگه	ye kam dige

Connectors and Filler Words

English	Formal (کتابی)	Transliteration	Colloquial (محاوره‌ای)	Transliteration
Because	زیرا / چون	zirâ / chon	چون / آخه	chon / âkhe
But	اما / لیکن	ammâ / liken	ولی	vali
Also	همچنین	hamchenin	هم	ham
Like this	بدین ترتیب	bedin tartib	اینجوری	injuri
So / Well	بنابراین	banâbarin	خب	khob
You know (filler)	–	–	یعنی / دیگه	ya’ni / dige
Right?	درست است؟	dorost ast?	مگه نه؟ / نه؟	mage na? / na?
Anyway	به هر حال	be har hâl	خلاصه	kholâse

Daily Life Words

English	Formal (کتابی)	Transliteration	Colloquial (محاوره‌ای)	Transliteration
Child	کودک	kudak	بچه	bachche
Woman	زن	zan	زن / خانم	zan / khânom
Man	مرد	mard	مرد / یارو	mard / yâru (casual)
House	منزل	manzel	خونه	khune
Bread	نان	nân	نون	nun
Water	آب	âb	آب	âb (same)

How the Same Sentence Sounds in Both Registers

Reading word lists is one thing. Hearing them in context is another. Here are five sentences. the kind you’d use every day. in both registers:

1. “I want to go home.”
Formal: من می‌خواهم به منزل بروم.. man mikhâham be manzel beravam.
Colloquial: من می‌خوام برم خونه.. man mikhâm beram khune.

2. “What did he say?”
Formal: او چه گفت؟. u che goft?
Colloquial: اون چی گفت؟. un chi goft?

3. “I don’t know why she didn’t come.”
Formal: نمی‌دانم چرا او نیامد.. nemidânam cherâ u nayâmad.
Colloquial: نمی‌دونم چرا اون نیومد.. nemidunam cherâ un nayumad.

4. “Give me that book.”
Formal: آن کتاب را به من بدهید.. ân ketâb râ be man bedahid.
Colloquial: اون کتابو بده.. un ketâbo bede.

5. “I spoke with him yesterday.”
Formal: من دیروز با او صحبت کردم.. man diruz bâ u sohbat kardam.
Colloquial: من دیروز باهاش حرف زدم.. man diruz bâhâsh harf zadam.

Want to see full conversations in both registers? Check out our 10 Dialogues in Formal and Street Farsi.

FAQ

What is the difference between formal and informal Farsi?

Formal Farsi (کتابی, ketâbi) is the written, “bookish” register used in news, literature, and official contexts. Informal Farsi (محاوره‌ای, mohâvere-i) is the spoken register used in daily conversation. The differences include shortened verbs, different pronouns, vocabulary swaps, and dropped particles. Both are correct. they serve different social contexts.

Do I need to learn both formal and colloquial Farsi words?

Yes. Formal words let you read newspapers, understand official speech, and write properly. Colloquial words let you understand real conversations, movies, and social media. Without both, you’ll always have a blind spot. either unable to read or unable to listen. The dual register approach is the fastest path to real Persian fluency.

Will I offend someone by using formal Farsi in casual conversation?

You won’t offend anyone. Iranians are delighted when foreigners speak any Farsi at all. But you’ll sound stiff, like someone who learned English only from legal documents. Starting formal and then switching to casual as the relationship warms is the natural Iranian pattern. Using overly formal language with close friends can actually feel cold or distant.

Is Tehran Farsi the same as colloquial Farsi?

Tehran Farsi is the “standard” colloquial that most learning resources teach and that’s understood across Iran. Other cities have their own colloquial features. Isfahani Farsi sounds different from Shirazi or Mashhadi. But Tehran colloquial is the safest to learn first because it’s the most widely broadcast through TV, movies, and social media.

How can I practice these colloquial Farsi words?

Add them to a spaced repetition system like ZabanYar and review daily. Watch Iranian movies with subtitles to hear them in context. Text with Iranian friends on Telegram. texting naturally uses colloquial vocabulary. And practice saying both versions of each word out loud to build the mental flexibility to switch between registers.

Print this list. Stick it on your wall. Review 5 pairs a day with ZabanYar’s flashcards. In two weeks, you’ll recognize these words when an Iranian says them. and that recognition is the difference between understanding a conversation and standing there smiling politely while lost.

50 Words That Change Between Formal and Street Farsi