The preposition z is one of the busiest little words in Polish, and it is a classic trap for English speakers because it does the work of two different English words — "with" and "from" — depending on the case it governs. With the instrumental, z means "together with" (accompaniment): idę z bratem ("I'm going with my brother"). With the genitive, the very same z means "from / out of": wracam z pracy ("I'm coming back from work"). And to make it harder, English "with" also covers the tool, which in Polish takes the bare instrumental with no z at all. So a single English "with/from" fans out into three different Polish constructions, and the case is what tells them apart. This page is about getting the accompaniment use — z + instrumental — rock solid, and sharply distinguishing it from its two look-alikes.
z / ze + instrumental = "together with (a companion)"
When z expresses accompaniment — being or doing something together with a person, animal, or thing as a companion — it governs the instrumental.
| Nominative | z + instrumental | Meaning |
|---|---|---|
| brat | z bratem | with (my) brother |
| żona | z żoną | with (my) wife |
| przyjaciele | z przyjaciółmi | with friends |
| dzieci | z dziećmi | with the children |
Idę dziś wieczorem do kina z bratem.
I'm going to the cinema with my brother tonight.
Mieszkam z dwiema koleżankami w centrum.
I live with two (female) flatmates in the centre.
W weekend byliśmy nad jeziorem z dziećmi i psem.
At the weekend we were at the lake with the kids and the dog.
This "companion" sense extends naturally to things that go together with something else — most famously, food and drink combinations. Kawa z mlekiem ("coffee with milk") treats the milk as the coffee's companion, not as a tool, so it takes z + instrumental.
Poproszę kawę z mlekiem i herbatę z cytryną.
I'll have a coffee with milk and a tea with lemon, please.
Zamówiłem pizzę z pieczarkami i szynką.
I ordered a pizza with mushrooms and ham.
The same z + instrumental shows up in a band of common fixed phrases of manner and attitude, where the "companion" is an abstract quality you bring to the action:
| Phrase | Meaning |
|---|---|
| z przyjemnością | with pleasure / gladly |
| z radością | with joy |
| z trudem | with difficulty |
| z uśmiechem | with a smile |
Z przyjemnością ci pomogę.
I'll gladly help you.
Otworzyła drzwi z uśmiechem.
She opened the door with a smile.
The same z, the genitive, and "from / out of"
Now the crucial split. Take the identical preposition z, attach it to a genitive noun, and the meaning becomes "from / out of" — origin, source, or removal. This is a completely separate use; only the case distinguishes it from accompaniment.
| z + GENITIVE = "from" | z + INSTRUMENTAL = "with" |
|---|---|
| z Polski (from Poland) | z Polką (with a Polish woman) |
| z domu (from home) | z domem (with the house) |
| z pracy (from work) | z kolegą z pracy (with a workmate) |
| z pociągu (out of the train) | pociągiem → jadę pociągiem (by train, no z!) |
Jestem z Polski, ale mieszkam w Niemczech.
I'm from Poland, but I live in Germany.
Wyszedł z domu o ósmej i wrócił z pracy po szóstej.
He left home at eight and came back from work after six.
Wysiadłem z autobusu na placu i poszedłem z kolegą do kawiarni.
I got off the bus at the square and went with a friend to a café.
That last sentence has both uses of z in one breath: z autobusu (genitive, "out of the bus") and z kolegą (instrumental, "with a friend"). The difference between z Polski and z Polką is entirely in the ending — -i (genitive) versus -ą (instrumental) — and it is the difference between "from Poland" and "with a Polish woman." The choice between z-from and the related od-from is covered on the z vs od page; what matters here is that "from" pulls the genitive and "with-together" pulls the instrumental.
The third look-alike: tool = bare instrumental, NO z
Finally, do not let English "with" trick you into adding z to a tool. When "with" means "using / by means of" — a pen, a fork, a knife — Polish uses the bare instrumental with no preposition (the full story is on the means and instrument page). Adding z here is wrong, and it changes the meaning: z turns the tool into an unintended companion.
| English "with" | Polish | Construction |
|---|---|---|
| with a friend (companion) | z przyjacielem | z + instrumental |
| with a pen (tool) | długopisem | bare instrumental, NO z |
| with milk (accompaniment) | z mlekiem | z + instrumental |
Jem zupę łyżką razem z mamą.
I'm eating soup with a spoon together with mum.
In that sentence, łyżką (the spoon, a tool) has no z, while z mamą (mum, a companion) has z. The grammar draws a line English doesn't: the spoon is a means, mum is a companion, and only the companion gets z.
Pokroiłem warzywa nożem i ugotowałem obiad razem z dziadkiem.
I cut the vegetables with a knife and cooked dinner together with grandad.
Common Mistakes
❌ Idę do kina z brat.
Incorrect — after z (accompaniment) the noun must be instrumental: z bratem.
✅ Idę do kina z bratem.
I'm going to the cinema with my brother.
❌ Poproszę kawę z mleko.
Incorrect — accompaniment z takes the instrumental: z mlekiem.
✅ Poproszę kawę z mlekiem.
I'll have a coffee with milk, please.
❌ Piszę z długopisem.
Incorrect — a tool is the bare instrumental with no z: piszę długopisem. (z długopisem would mean 'accompanied by a pen'.)
✅ Piszę długopisem.
I'm writing with a pen.
❌ Jestem z Polką, uczę się tu od roku.
Incorrect for 'I'm from Poland' — origin takes z + genitive: jestem z Polski. (z Polką means 'with a Polish woman'.)
✅ Jestem z Polski, uczę się tu od roku.
I'm from Poland, I've been studying here for a year.
❌ Rozmawiałem z mój kolega.
Incorrect — both the possessive and noun go instrumental after z: z moim kolegą.
✅ Rozmawiałem z moim kolegą.
I talked with my friend.
Key Takeaways
- z / ze + instrumental = "together with" — a companion (person, animal) or an accompaniment (kawa z mlekiem): idę z bratem, z przyjemnością.
- The same z + genitive = "from / out of" — origin or source: z Polski, z domu, z pracy. The case ending is the only signal.
- A tool is the bare instrumental, no z: piszę długopisem, jadę autobusem. Adding z wrongly makes the tool a companion.
- Use ze before clusters: ze mną, ze szkołą, ze Szwecji.
- English "with/from" splits three ways in Polish — companion (z + instr.), origin (z + gen.), tool (bare instr.) — and you must track which meaning you intend.
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Start learning Polish→Related Topics
- Instrumental: Means and InstrumentA2 — The instrumental's core meaning — the tool, means, or manner BY which something is done, with NO preposition: piszę długopisem, jadę autobusem, kroję nożem — and why you must not add 'with' or 'by'.
- Instrumental: FormsA2 — The instrumental (narzędnik) endings — masculine/neuter -em, feminine -ą, plural -ami (plus the -mi handful: ludźmi, dziećmi, końmi) — with the velar softening k/g→ki/gi and the crucial ą-vs-ę contrast with the accusative.
- z/ze: From and WithA2 — One preposition, two meanings, two cases — z + genitive means 'from / out of', z + instrumental means 'with [together]', and the case you choose is the only thing that tells them apart.
- z vs od: Two Ways to Say 'From'B1 — How to choose between z and od for 'from' — z for places and materials you came out of, od for people, sources and starting points in time.
- Instrumental: All Uses at a GlanceB1 — A single scannable reference to every job the instrumental does — means, transport, predicate noun, accompaniment with z, static location, time and manner, certain verbs — unified by one idea: the means or attendant circumstance.
- Prepositions and Case: OverviewA2 — Why every Polish preposition forces a specific case on its object — and why a dozen prepositions change case to change meaning.