表層形
あかさ
アカサ
動詞
あかさ (アカサ)
Akasa · あかさ — to pass (the night), to spend; to reveal, to divulge, to disclose, to expose; to prove, to verify
Other ways to say “to pass” in Japanese →
あかさ in rōmaji: akasa.
動詞
一般
*
*
📝 明かす 🔤 五段-サ行 📐 未然形-一般
Updated: 2026年9月26日
📖 Grammar Information
| 表層形 (Surface) |
あかさ
|
|---|---|
| 見出し語 (Lemma) |
明かす
|
| 読み (Reading) |
アカサ
|
| 品詞 (POS) |
動詞・一般・*・*
|
| 活用型 (Conj. Type) |
五段-サ行
|
| 活用形 (Conj. Form) |
未然形-一般
|
| 表記 (Orthography) |
あかさ
|
| 読み・基本形 |
アカス
|
| 表記・基本形 |
あかす
|
| 見出し語の読み |
アカス
|
How it's used
Used in formal or written Japanese to mean 'to pass the night' or 'to reveal', often in news or literature.
⚖️ Commonly confused with 明ける (akeru), which means 'to dawn' or 'to end' (as in a period).
💡 English Meaning
あかさ means “to pass (the night), to spend; to reveal, to divulge, to disclose, to expose; to prove, to verify” — full definition & examples →
⭐ Dictionary Form
🔗 Other Forms of あかす
🃏 Flashcard — Test Yourself
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あかさ
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Reading & Info
アカサ
Lemma: 明かす
動詞一般**
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⚡ 五段 (Godan/U-verb) Conjugations
| ます形 (Polite) |
明かします
|
| て形 (Te-form) |
明かして
|
| 過去形 (Past) |
明かした
|
| 否定形 (Negative) |
明かさない
|
| 意向形 (Volitional) |
明かしましょう
|
| 可能形 (Potential) |
明かせる
|
| 受身形 (Passive) |
明かされる
|
| 使役形 (Causative) |
明かさせる
|
💡
Did you know · 動詞
動詞 (verbs) come at the end of a Japanese sentence. They conjugate for tense, politeness, negation, and mood — this entry shows the base (dictionary) form.
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❓ About this entry
What is the difference between surface form and lemma? ▼
The surface form (あかさ) is the exact text as it appeared in the corpus — it may be conjugated or inflected. The lemma (明かす) is the dictionary base form. For example, 食べた (surface) has the lemma 食べる.
What does the reading (pron) field mean? ▼
The reading shows the pronunciation in hiragana or katakana as recorded by UniDic. For kanji entries this is the standard reading of this specific surface form — which may differ from other readings of the same kanji.
What is UniDic? ▼
UniDic is a comprehensive Japanese lexicon developed by the National Institute for Japanese Language and Linguistics (NINJAL). It provides detailed morphological information for modern Japanese words, used in NLP tools like MeCab.
How do I use the conjugation table? ▼
The table shows the most common inflected forms of this verb. Click any "Copy" button to copy the form. Note: these are generated from the lemma 明かす based on its conjugation type (五段-サ行).
How do I save this entry? ▼
Click the ★ save button in the word card above (you need to be logged in). Saved entries appear in your personal Saved Dictionary page for quick review later.