Omphalos and Omphaloses

Omphalos noun - A thing or place that is of greatest importance to an activity or interest.

Omphaloses and omphalos are semantically related In some cases you can replace term "Omphaloses" with "Omphalos", this nouns are similar.

Omphalos and omphaloses are semantically related in center topic. Sometimes you can use "Omphalos" instead a noun "Omphaloses", if it concerns topics such as middle point, center of a target.