certain

1. Origins, structure, and basic meaning

• Structure: 確 has 15 strokes and concerns certainty or correctness.
• Basic usage: 確かめる is read たしかめる, and 正確 is read せいかく.

2. Common pitfalls and similar expressions

• Checking and accuracy
  • 現在地を確かめた means confirmed one's current location.
  • The 確 in 正確 is read かく.
  • 住所を正確に入力 means entering an address accurately.
  • に makes the expression modify the action.
  • 正確だ states that something is accurate.