10-Letter Words Containing: N,I,V,A,T,I,O,N

• a prayer asking God's help as part of a religious service

• an incantation used in conjuring or summoning a devil

• calling up a spirit or devil

• the act of appealing for help

• serving as or indicating the subject of a verb and words identified with the subject of a copular verb

• the category of nouns serving as the grammatical subject of a verb

• named; bearing the name of a specific person

• appointed by nomination

• the guidance of ships or airplanes from place to place

• ship traffic

• the work of a sailor

• successful conjecture by unusual insight or good luck

• a prediction uttered under divine inspiration

• the art or gift of prophecy (or the pretense of prophecy) by supernatural means

• bring something new to an environment

• a request (spoken or written) to participate or be present or take part in something

• a tempting allurement

• a creation (a new device or process) resulting from study and experimentation

• the creation of something in the mind

• the act of starting something for the first time; introducing something new

• Not trivial.

• Not obvious or easy to prove; sometimes specifically involving at least one non-zero value.

• Needing significant computing power to solve; intractable.