Giggle/ˈɡɪɡl/ Definition 1 of 3Pro Tip 1/3Subtle Laughter Use 'giggle' when describing soft, subdueda laughter, not loud guffaws. She tried to keep straight-faced, but a giggle escaped her lips. Pro Tip 2/3Emotional Nuance A giggle can express nervousness or embarrassment, not just amusement. During his presentation, he nervously giggled at his own uncertainty. Pro Tip 3/3Social Context Giggling is often a social response, shared in groups to signify enjoyment. They giggled together at the whimsical scene in the movie.