What is the meaning of Dominance?

The state of being dominant; of prime importance; supremacy.

Being in a position of power, authority or ascendancy over others.

The superior development of or preference for one side of the body or one of a pair of organs; such as being right-handed.

of an allele, the degree to which it expresses its phenotype when heterozygous, such as whether it is dominant or recessive.

dominance

Source: wiktionary.org