When someone whispered something, they said it very quietly so others wouldn't hear.
The word "whispered" often comes up when we talk about conversations that need to stay private. For example, if two friends are planning a surprise party and one of them whispers the details to the other in class, then they've whispered. Whispering can also be used to get someone's attention without waking them up – like whispering "Shh" to a sleeping baby or pet.
To speak softly, or under the breath, so as to be heard only by one near at hand; to utter words without sonant breath; to talk without that vibration in the larynx which gives sonorous, or vocal, sound.
