There are several synonyms for the phrase "hang by the neck". Some of the synonyms you can use instead of "hang by the neck" include "execute by hanging", "suspend by the neck", "noose", "lynch", and "hangman's knot". When a person is sentenced to death by hanging, the term "hang by the neck" is often used in media and legal jargon. However, it is important to remember that the act of hanging a person by the neck is considered to be a barbaric form of punishment in the 21st century. Instead, modern societies advocate for more humane forms of punishment that take into account the dignity of human life.