1. the hard outer coverings of eggs, especially bird eggs
Usage: plural of eggshell
2. a situation requiring extreme care or sensitivity
Usage: used in the phrase ‘walking on eggshells’

Examples

• She carefully removed the eggshells from the bowl after cracking the eggs.
• The children collected colorful eggshells for their art project.
• Crushed eggshells can be used as fertilizer in the garden.
• He felt like he was walking on eggshells around his angry boss.
• The eggshells cracked easily when the chicks hatched.
• She’s been walking on eggshells since their argument last week.
• The recipe called for separating the eggs and discarding the eggshells.