Childhood/ˈtʃaɪldhʊd/ Definition 1 of 1Pro Tip 1/3Time Frame Childhood refers to the early stage of life, typically before teenage years. He moved to Canada in his childhood. Pro Tip 2/3Nostalgic Use People often use 'childhood' when reminiscing about positive, formative experiences. Childhood summers at my grandma's house are precious to me. Pro Tip 3/3Not Always Joyful Be aware that 'childhood' can evoke a range of emotions, not always happy. Her childhood was a tough period, full of challenges.