Secret languages have 0 UNDENIABLY been around for as long as secrets themselves, with some speakers deliberately playing on the 17 of others to communicate with their confidante. Secret languages between twins are different, developing early in childhood. From their first 18 , many twins begin to develop what later becomes a language that only they understand.

It may seem 19 that toddlers communicate in a language different from the 20 they’re receiving. It isn’t the result of an 21 to reproduce their mother tongue, although a not 22 number of twin languages begin with a mispronunciation of the language(s) they hear. It’s a natural consequence of them developing psychologically and linguistically at the same rate.

There is no deliberate attempt to 23 caregivers as twins grow up, either. But because twins understand each other when their parents don’t, errors can be reinforced. Without intervention, this can cause 24 in language development, though the vast majority of twins have no difficulty in acquiring their mother tongue while continuing to use their secret language between themselves, occasionally even into adulthood!