Avoidance speech styles used with taboo relatives are often called mother-in-law languages, although they are not actually separate languages but separate lexical sets with the same grammar and phonology. Typically, the taboo lexical set has a one-to-many correspondence with the everyday set. For example, in Dyirbal the avoidance style has one word, "jijan", for all lizards, while the everyday style differentiates many varieties. In Guugu Yimidhirr the avoidance speech verb "bali-l" "travel" covers several everyday verbs meaning "go", "walk", "crawl", "paddle", "float, sail, drift", and "limp along". Corresponding avoidance and everyday words are generally not linguistically related. Avoidance forms tend to be longer than everyday forms.