“egg” in Japanese is 卵, read ran, tamago (らん, たまご). It is a Grade 6 Kyōiku kanji, taught in year 6 of Japanese elementary school, and appears in words such as 卵焼き (rolled omelet).
What does 卵 mean?
朝ごはんに卵を食べる。
Same sound, different character — the classic trap. Compare them side by side: