pi

pi is a particle used for grouping modifiers together.

How it works

By default, each modifier applies to the whole phrase before it:

jan pona

good person

jan pona mute

many good people

pi marks the next word as a new head, which takes its own modifiers:

jan pi pona mute

very good person

pi needs to be followed by at least two content words: the new head and a modifier applying to it. If there would only be one word after it, you don't need the pi.

There is no way to "close" a pi phrase. Instead, modifiers that apply to the first word should be moved before the pi:

jan pi pana sona

knowledge-giving person (teacher)

jan ike pi pana sona

knowledge-giving bad person (bad teacher)

Multiple pi

While not defined in pu, some speakers do use multiple pi in a single phrase. However, this carries a risk of ambiguity as to whether the second pi is contained within the first or not:

lipu pi sona mute pi toki Inli

English much-knowledge book (is the book in English or is the knowledge about English?)

Using a single word between the pi does prevent the ambiguity, as a non-nested layout would contain an invalid single-word pi phrase. However, if you feel the need to stack this many modifiers, you might be better off rephrasing the phrase into a sentence:

kiwen pi soweli pi kute suli

big-eared animal rock

kiwen ni li sama soweli pi kute suli

this rock is like a big-eared animal

soweli pi kute suli li lawa e kiwen ni

a big-eared animal rules over this rock

pi and "of"

Some dictionaries define pi as the English word "of". This can be misleading, as not all instances of "of" translate into pi:

toki pi pona

language of good

It may be more helpful to think of every modifier as having an implied "of" before it:

kala utala suli

fish of fighting of bigness