ambilingual

Speaking two or more languages with complete fluency and such that there is no subject or domain of communication in which one language is preferred over others.

The ambilingual poet (as I regard myself) dealing in the transcription of his or her own poetry, though one would assume able to take more liberties, ends up having more trouble in fashioning equivalents.

Some bilingual speakers, including some who are ambilingual, can be said to have two (occasionally more) native languages. There is no exact criterion for this; but one could say arbitrarily that any language learnt by the child before the age of instruction, from parents, from others, such as a nurse, looking after it, or from other children, is an L1. It is clear, however, that only a small proportion of those who learn two or more languages in this way become ambilingual speakers; and conversely, not all ambilinguals have two L1s.

Having two languages that are used for any and all communications, where neither language is dominant.

When two languages in a territory function for the same people and both can be used officially and at the dialect level we have what is called an ambilingual situation.

In a typical ambilingual area it is nearly impossible to tell which language is used when in a given settings.

A person who is ambilingual.

Although he comes very near to being an ambilingual in that he can read, write, understand and speak equally well in French and English, his attempts to translate one of his own books led to failure.

True ambilinguals are said to be rare, since most people capable of speaking two languages 'restrict at least one of their languages to ceratin uses: and in any given use, one or the other language tends to predominate.'