Kanji: 危 険 全 以 探

1. Vocabulary List

2. Grammar & Sentences

危ない vs 危険: Both mean "dangerous" but behave differently.

• 危ない is an i-adjective — modifies nouns directly: 危ない場所 (abunai basho) — "dangerous place"
• 危険 is a noun / na-adjective — requires な before a noun: 危険な場所 (kiken na basho) — "dangerous place"

以上 / 以下 — "Or more / Or less":

• Structure: [Number] + 以上 / 以下
• Example (以下): 千円以下。(Sen en ika.) — "1,000 yen or less."
• Example (以上/以下 pair): 以上（いじょう）/ 以下（いか）— "or more / or less"

だから — "Because / So":

Connects a reason to a result in plain/casual speech.

• Structure: [Reason] + だから + [Result]
• Key Phrase: 危険だから入らないでください。(Kiken dakara hairanaide kudasai.) — "Because it's dangerous, please do not enter."

探す — "To look for":

• Key Phrase: アパートを探す。(Apāto wo sagasu.) — "I'll look for an apartment."
• Extended Example: 家ちんが十万円以下のマンションを探しています。(Yachin ga jūman en ika no manshon wo sagashite imasu.) — "I'm looking for an apartment with a rent of 100,000 yen or less."

3. Learning Context

• Kanji radicals:
  • 危 — radical 巳 (seal); left part resembles a cliff
  • 険 — radical 阝 (mound); shared with 降
  • 全 — radical 人/へ (people/roof); shared with 会 and 今
  • 以 — radical 人 (people); shared with 人
  • 探 — radical 扌 (hand); shared with 持
• Topic: Describing safety and searching for property with numeric limits
• Key contrast: 危ない (i-adj) vs 危険 (noun/na-adj) — same meaning, different grammar behaviour

4. Progress Tracker