In this Topic, we're going to learn about the adverbial particle だけ. だけ lets us put a limit on something, saying it 'only' or 'just'. We'll also explore the core meaning of だけ in the details section.

Although だけ can often be simply translated as 'only' or 'just', the way it is used is different to these English words. Let's see why and how.

The Limiter

だけ originally comes from 丈(たけ), meaning 'height' or 'length'. From this, we can see the connection to why, at its core, だけ represents measurement of extent (limit).

Because だけ represents a limit, it cannot be used for every situation where English would use 'just'. Let's look at some other 'justs'. Note that these are all slightly advanced, so we'll learn more about them in detail from N4 and beyond!

We can also see how だけ is a limiter in the common phrase できるだけ, combining できる 'able to' and だけ (representing the limit of what one is able to do).

In summary, だけ doesn't really mean 'just'. It represents an extent or limit.

Particle Collision

Since だけ is an adverbial particle, it can interact with other particles in interesting ways.

In a standard fully formed sentence, だけ attaches directly to the noun, and the case-marking particle (が, を, で, et cetera) directly follows. It creates a sandwich with だけ in the middle.

However, in casual speech, the case-marking particles are often dropped.

Finally, we have a much more advanced point to watch out for. While だけ usually comes before case-marking particles, in some specific (rarer) cases it can technically come after! This is especially true for に and で.

For the moment it is safe to remember that だけ will normally stick tightly to the word it is limiting though!