Select the most appropriate one-word substitution for the given group of words. 

An act of burying a dead person.

Interment

The most appropriate one-word substitution for the given group of words "An act of burying a dead person" is "Interment."

Explanation of the options:

☀ Utopia: Utopia refers to an imagined perfect or ideal society and is unrelated to the act of burying a dead person.

☀ Sacrilege: Sacrilege refers to the violation or misuse of sacred things or places and is not directly related to burying the dead.

☀ Interment: This word accurately captures the act of burying a dead person. It specifically refers to the burial or laying to rest of a deceased individual.

☀ Intermittent: Intermittent means occurring at irregular intervals or with pauses in between and does not pertain to the act of burying the dead.