What is a particle in Japanese?

A particle is a short word — usually one kana — that comes after a word to show its job in the sentence: who is doing what, to what, where and when. English uses word order and prepositions for this; Japanese uses particles, so the same words can be reordered freely as long as the markers stay attached.

Why is は pronounced 'wa' when it's a particle?

The character は is normally read 'ha', but when it acts as the topic particle it is pronounced 'wa'. It is a historical spelling that never updated. The same happens with へ (read 'e' as the direction particle) and を (read 'o', used only as the object particle).

What is the difference between は and が?

は (wa) marks the topic — what you're talking about, often old or shared information. が (ga) marks the grammatical subject and tends to introduce new information or pick something out. A rough rule: は puts the spotlight on what comes after it, が puts the spotlight on the word it marks.

What does the particle を do?

を (o) marks the direct object — the thing an action is done to. In 水を飲む (mizu o nomu, 'drink water'), を tags 水 as the thing being drunk. It is written with the kana を, which is used almost only for this job.

kana.

← play the game

Japanese particles: wa, ga, wo, ni, de explained

Particles are the tiny words — usually a single kana — that glue a Japanese sentence together. They don't translate to one English word; instead each one labels the job of the word in front of it: who's doing the action, what it's done to, where and when. Learn the handful below and most sentences suddenly make sense. Here's what each one does, why は is read "wa", and the famous は-vs-が question.

How particles work

English shows a word's job with word order and prepositions: "the cat" before the verb is the doer, "to the cat" means direction. Japanese instead sticks a little marker after the word — a postposition. Because the marker travels with the word, Japanese can shuffle the order around and still be clear. The verb almost always comes last, and everything before it is labelled by particles:

私は　学校で　日本語を　勉強する。

watashi wa · gakkō de · nihongo o · benkyō suru

"As for me, at school, Japanese, (I) study." Each particle tags its word — topic, place, object — so the meaning holds however you reorder the chunks.

The three reading exceptions

Before anything else, three particles are written with one kana but read differently when they do their particle job. This trips up every beginner, so memorise it now:

Same kana, different sound — only when used as a particle
Kana	Normal sound	As a particle	Job
は	ha	wa	topic marker
へ	he	e	direction "to / toward"
を	wo	o	object marker

These are historical spellings that never updated when the pronunciation drifted. は and へ only shift when they're acting as particles; spelled inside a word they keep their normal "ha" and "he". を is the odd one — it's basically used only as the object particle, so you'll almost always hear it as plain "o".

The particles you meet first

A whole sentence's worth of grammar lives in this little table. Each marker goes after the word it labels.

Core Japanese particles — what each one marks
Particle	Read	Marks / means	Mini example
は	wa	the topic — "as for…"	猫は neko wa — as for cats
が	ga	the subject — who/what does it	雨が降る ame ga furu — rain falls
を	o	the object — what's acted on	水を飲む mizu o nomu — drink water
に	ni	destination, location, time	7時に shichi-ji ni — at 7
で	de	where an action happens, by what means	電車で densha de — by train
へ	e	direction — "to / toward"	東京へ tōkyō e — toward Tokyo
と	to	"and" (full list), "with"	友達と tomodachi to — with a friend
も	mo	"too / also", "even"	私も watashi mo — me too
の	no	possessive — "'s / of"	私の本 watashi no hon — my book
から	kara	"from", "because"	9時から ku-ji kara — from 9
まで	made	"until / as far as"	駅まで eki made — as far as the station
か	ka	turns a sentence into a question	元気か genki ka? — well?

は vs が — the big one

This pair causes more head-scratching than any other point in beginner Japanese, because both can look like the English "subject". The cleanest starting rule:

は (wa) marks the topic — the thing you're talking about, usually already known. It quietly says "as for X…" and then puts the spotlight on whatever comes after it.
が (ga) marks the subject — and tends to introduce new information or single something out. The spotlight is on the word が itself tags.

私は学生です watashi wa gakusei desu — "As for me, (I'm) a student." The new info is "student".

誰が学生ですか dare ga gakusei desu ka — "Who is the student?" Here が spotlights the unknown — and the answer keeps が: 私が "I am."

A handy test: if you could slip "as for" in front in English, you probably want は. If you're answering "who/what?" or pointing something out for the first time, reach for が. You'll calibrate the feel with exposure — don't expect it to click from one rule.

に vs で — two kinds of "where"

Both can land on a place, so beginners mix them up. The split is about what the place is doing:

に (ni) = a point — where something is, or where an action arrives. Also marks clock times. 家にいる ie ni iru — (I'm) at home; 東京に行く tōkyō ni iku — go to Tokyo.
で (de) = where an activity takes place, or the means you use. 家で食べる ie de taberu — eat at home; ペンで書く pen de kaku — write with a pen.

Rule of thumb: a static location or an arrival point takes に; the stage on which something happens takes で. "Be at home" is に; "do something at home" is で.

The little glue words: と, も, の

と (to) joins nouns in a complete list — パンと卵 pan to tamago — bread and eggs — and also means "with (someone)".
も (mo) means "too / also", and replaces は or が rather than stacking on them: 私も "me too".
の (no) links two nouns, most often as possession — 私の名前 watashi no namae — my name — but broadly "X of Y": 日本語の本 "a Japanese(-language) book".

Sentence-enders: か, ね, よ

Some particles sit at the very end and colour the whole sentence rather than tagging one word:

End-of-sentence particles
Particle	What it adds	Feel
か ka	makes it a question	行きますか ikimasu ka? — are (you) going?
ね ne	seeks agreement — "right? / isn't it?"	いい天気ですね ii tenki desu ne — nice weather, isn't it?
よ yo	asserts / informs — "I'm telling you"	おいしいよ oishii yo — it's tasty (trust me)

In casual speech か is often dropped and a rising tone does the asking, but ね and よ are everywhere — they're a big part of why spoken Japanese sounds warm rather than robotic.

How to actually learn particles

Learn them in context, not as a list. A particle's meaning lives in the example sentence — bank "水を飲む" as a whole, and を teaches itself.
Don't fight は vs が early. Use は as your default topic marker, notice が when natives use it, and let the feel build over months.
Drill the three reading exceptions until they're automatic. は = wa, へ = e, を = o, every time they're particles.
Read the kana fluently first. Particles are single hiragana hiding in a wall of text — if the script isn't automatic, you'll miss them entirely.

Particles are pure kana. Every marker on this page is a hiragana you'll read thousands of times a day, so the script needs to be instant before grammar can stick. The kana typing game flashes a character and asks you to type its romaji against the clock, building the reflex into a combo chase that surfaces the kana you keep missing.

Play the kana game →

New to the scripts? Start with the hiragana chart & reading guide, see how the sounds extend in sounds & combos, or count things with the right counter words.