充塡

1. Origins, structure, and basic meaning

• Structure: 充塡, read じゅうてん, means filling an empty space or a container with material.
• Basic usage: It describes filling wall gaps with insulation or putting contents into containers.

2. Common pitfalls and similar expressions

• Distinguishing 充電
  • 充塡 means filling a space with material; 充電 means charging with electricity. Their readings are respectively じゅうてん and じゅうでん.