Finnish IRL

Finnish slang, and what is not slang

Almost everything filed under Finnish slang online is one of three different things, and only one of them is slang. The other two are ordinary Finnish - which matters, because the question you are really asking is whether you can say this to your boss.

Three layers, one list

A Finn hears these as completely different kinds of word. A list that runs them together is the reason you can say something technically correct and still watch the room react.

  1. Puhekieli - the spoken surface

    Standard Finnish, said the way people say it. minä becomes mä, olen becomes oon, menemme becomes mennään. It is not vocabulary, it is a set of regular changes, and it applies to the entire language at once. Every Finn uses it, everywhere, including in meetings.

    24 words here are filed this way. They are the ones worth your time first: the nine changes and every pair.

  2. Slang - separate words

    Its own vocabulary, with no standard form behind it. duuni is not a spoken version of työ, it is a different word that means the same thing. Slang is generational and local, it dates, and it carries a social signal that puhekieli does not.

    2 words so far, below.

  3. Sanonta - fixed phrases

    A phrase whose meaning does not add up from its parts, like ei hassumpaa or torilla tavataan. The words are ordinary; the combination is the unit. You cannot vary the wording, which is exactly what makes it different from the two layers above.

    6 phrases here, tagged sanonta rather than slang for that reason.

The words that are not slang

These are the five that carry most of the English-language traffic about Finnish, and none of them is slang. They are ordinary words for things English happens not to have a word for, which is a fact about English.

Word What it actually is Where you would meet it
sisu An ordinary noun. Stubborn endurance. Newspapers, company names, a truck marque, an icebreaker
sauna A room. The only Finnish loanword in everyday English. Every building, more or less - including a shared one per stairwell
löyly A noun with no English equivalent: the steam off the stones. Said out loud in a sauna, by everyone, constantly
myötähäpeä A compound. Second-hand embarrassment. Ordinary conversation. German has its own word; English borrows a phrase
kaamos A weather word. The polar night. The forecast, in December, without irony

The site files all five as standard, not slang, and gives them a page each anyway - because unfamiliar is a real problem even when it is not a register problem. What they do not get is a warning about who you can say them to, since the answer is anyone.

The slang, so far

Words with no standard Finnish equivalent behind them. Each page says what decade it belongs to and how it lands coming from a foreigner.

duuni - a man in a reflective work jacket waiting early at a snowy Finnish tram stop with a thermos, a lit tram coming through the blue pre-dawn
duuni Fine in the office, wrong in the application
kalsarikännit - a man in a knitted cardigan and underwear in an armchair with a beer, thawing spring fields through the window
kalsarikännit Trousers off, curtains shut, nowhere to be

Stadin slangi, the Helsinki layer

The oldest and deepest of the local layers, and the one an English reader is most likely to have met without being told it was local.

It grew from the 1890s in the working-class districts of a city that was then mostly Swedish-speaking - the 1870 census has 57% Swedish, 26% Finnish, 12% Russian and 2% German at home - as Finnish-speaking families arrived for industrial work and their children built a shared language out of what was in the street. So it borrowed from all of them, Swedish most heavily, then German and Russian, and today mostly from English. The name is one of the loans: stadi is Swedish stad, city.

Some of it went national and stopped being Helsinki-specific, which is why duuni is understood everywhere and most of the rest is not. That split is the practical part: a Helsinki word used in Oulu is correct Finnish in the wrong place, and it is the kind of mistake that reads as a claim about where you belong.

Word Where it belongs What it means
duuni Helsinki origin, now used across Finland Work. A job.

Regional words and borrowings

Filed regional or loan rather than slang: a word can be perfectly standard in its own city, and a borrowing can be standard everywhere.

Kela - a man sitting alone in a row of plastic chairs in a Kela waiting room holding a paper queue ticket, snow through the glass door
Kela The letter arrives before you have worked out who sent it

The long versions

Where a layer needs more than a table. These are the pieces that go into one of them properly.

Finnish swearing has a grammar slot of its own
Reach for luoja to be polite and the sentence stops being Finnish 12 min read
18 Finnish filler words, sorted by their job
The tiny words carrying the entire conversation 7 min read

How to use this page

If you are here because you heard a word and cannot place it, the question to ask first is which layer it is from, not what it means. A puhekieli form is a word you probably already know wearing different clothes, and the pairs table will find it in a few seconds. Slang is a genuinely new word, and the page for it will tell you whose slang it is.

The glossary is the whole corpus in A-Ö order if you know what you are chasing, and the slang category is this page's list without the argument around it. Every word page carries its own sources, which is where the etymologies on this page come from.

About Finnish slang

What is the difference between Finnish slang and puhekieli?

Puhekieli is the spoken surface of ordinary standard Finnish - minä said as mä, olen said as oon. Every Finn uses it, in every register, including at work. Slang is separate vocabulary with its own words, and it is generational and local: duuni for työ, skidi for lapsi. You can speak puhekieli in a job interview. Slang in a job interview is a choice with consequences.

Is sisu a slang word?

No. Sisu is an ordinary Finnish noun that turns up in newspapers, company names and government campaigns. It appears on slang lists because it is hard to translate, which is a different property entirely. The same goes for sauna, löyly, kaamos, mökki and myötähäpeä: unfamiliar to you, unremarkable to a Finn.

Is kalsarikännit real, or a joke invented for the internet?

It is a real compound and Finns use it, but its fame is out of all proportion to how often it is said - it travelled the world first as a piece of Finnish national branding and then again as a book title in English, and much of the coverage since has been about the coverage. It is on this site as a slang word because that is what it is, not because it is the first thing anyone should learn.

What is Stadin slangi?

The Helsinki layer, and the oldest one. It grew from the 1890s among Finnish-speaking children in a city that was then majority Swedish-speaking, with Russian and German minorities in it, and it took vocabulary from all of them. The name itself is one of its loans: stadi is Swedish stad, city. Some of it has since gone national, which is why duuni is understood in Oulu and a lot of the rest is not.

Will Finns think I am rude if I use slang?

Rude is rarely the risk. The usual outcome is that it lands as odd rather than offensive - a word from the wrong decade, or a Helsinki word three hundred kilometres from Helsinki. The exception is swearing, which is culturally ordinary between Finns and reads differently from a foreigner, so those words get their own safety treatment on this site rather than a translation.

Which layer should I learn first?

Puhekieli, by a wide margin, and it is not close. It is regular, it applies to the whole language at once, and it is what is being said to you in the room right now. Slang is a smaller set of individual words with no rule behind them, and not knowing one costs you a word. Not knowing puhekieli costs you the sentence.

More questions →