Are all of Allah's names meaningful? Is it disbelief for someone to say to a person "the King" intending to equate him with Allah? Are all of Allah's names without equal?

All of Allah's Most Beautiful Names (Asma' al-Husna) indicate perfect meanings and attributes that are free from any deficiency. If they did not convey meanings, they would not be beautiful. Allah's names point to His perfect attributes, and they are both names and descriptions simultaneously. Denying their meanings is considered apostasy (ilhad). No one resembles Allah in the meaning of any of His names or attributes. It is obligatory to affirm all that Allah has affirmed for Himself and His Messenger has affirmed for Him regarding names and attributes, both in wording and meaning, without distortion (tahrif), nullification (ta'til), asking "how" (takyeef), or similitude (tamthil). Whoever likens Allah to His creation has committed disbelief, and whoever denies what Allah has described Himself with has committed disbelief.