Waku Waku Meaning in Japanese: Usage, Examples, and Anime

Waku waku (わくわく or ワクワク) means excited anticipation: the bright, restless feeling of looking forward to something good. If you first noticed it when Anya Forger says it in Spy x Family, the feeling is exactly the same—she is delighted by what might happen next.

English translations such as “I’m excited,” “I can’t wait,” and “I’m looking forward to it” can all work. None is a perfect one-word match, though. Waku waku puts the focus on anticipation itself: a trip tomorrow, a gift waiting to be opened, a concert you have been counting down to, or a new game about to be released.

Contents 7

What does waku waku mean?

Japanese dictionaries describe waku waku as a state in which expectation or joy makes the heart feel unsettled and lively. In everyday modern use, it usually carries a positive sense: you are eager for something enjoyable that has not happened yet.

It is an onomatopoeic expression, but it does not imitate a sound such as a bell or a door closing. Japanese has many mimetic words that convey movement, texture, mood, or an inner feeling. Waku waku gives a quick picture of a heart that feels full of expectation.

How to write and say it

You will see the word in both hiragana and katakana:

• わくわく — hiragana, common in ordinary writing.
• ワクワク — katakana, often used to make the expression stand out in manga, advertising, captions, and casual writing.
• waku waku or wakuwaku — romanization for learners.

The pronunciation is wa-ku wa-ku, with four short, even beats. The repetition is part of the word; saying only waku does not create the same expression.

How to use waku waku naturally

The most useful pattern is わくわくする (waku waku suru), literally “to feel waku waku.” It can change like a verb.

• わくわくする — to feel excited; casual form.
• わくわくしている — to be feeling excited right now.
• わくわくしています — polite “I’m excited / I’m looking forward to it.”
• わくわくした — felt excited.

A natural way to name the reason is 〜が楽しみで、わくわくしている: “I’m looking forward to ~, so I’m excited.” This is more useful than forcing a direct English sentence into Japanese word for word.

Example sentences

明日の旅行が楽しみで、わくわくしています。
Ashita no ryokō ga tanoshimi de, waku waku shiteimasu.

I’m excited about tomorrow’s trip.

プレゼントを開けるのが楽しみで、わくわくしている。
Purezento o akeru no ga tanoshimi de, waku waku shiteiru.

I’m excited to open the present.

新しいゲームの発売が楽しみで、わくわくしている。
Atarashii gēmu no hatsubai ga tanoshimi de, waku waku shiteiru.

I’m excited about the new game’s release.

子どもたちは遠足の前からわくわくしていた。
Kodomotachi wa ensoku no mae kara waku waku shiteita.

The children had been excited since before the field trip.

When waku waku fits—and when it does not

Use waku waku when something pleasant is ahead of you. A birthday, a first visit to a new place, a favorite artist’s concert, and a meal you have been eager to try all fit comfortably.

It is less suitable when “excited” means alarmed, stressed, or tense. For instance, before a difficult interview, you might feel nervous rather than waku waku. Context matters: the word normally signals hopeful anticipation, not pressure.

If you only want to say “I’m looking forward to it,” 楽しみにしています (tanoshimi ni shiteimasu) is another natural choice. It can sound calmer and more neutral. Waku waku shiteimasu adds a more visible spark of enthusiasm.

Why waku waku appears so often in anime

Anime and manga often use repeated Japanese expressions because they make a character’s emotion easy to hear and remember. Waku waku suits a character who is curious, upbeat, or about to rush into an adventure. It has become especially familiar to international viewers through Anya in Spy x Family, but it is not anime-only language. You can hear it in everyday conversation, see it in advertisements, and use it yourself when the situation is informal and positive.

That light, playful sound also explains why it pairs naturally with kawaii character writing. Still, adults use it too. The key is not age or fandom; it is whether you are genuinely looking forward to something.

Quick answer

Waku waku means “excited anticipation” in Japanese. Say waku waku shiteimasu when you are happily looking forward to something, especially before an event, trip, gift, release, or new experience. For a quieter “I’m looking forward to it,” use tanoshimi ni shiteimasu.