家 is built from the 宀 (roof) and 豕 (pig) components.
It belongs to a phonetic family with 稼 and 嫁 — they share the 家 component and the reading カ.
A common word using 家 is 家族 (かぞく), meaning “family, members of a family”.
Kanji that look similar include 宮, 宰, 害, and 宴.