noun

• (physiology, uncountable) The drawing of air into the lungs, accomplished in mammals by elevation of the chest walls and flattening of the diaphragm, as part of the act of respiration.
• (countable) A breath, a single inhalation.
• A supernatural divine influence on the prophets, apostles, or sacred writers, by which they were qualified to communicate moral or religious truth with authority; a supernatural influence which qualifies people to receive and communicate divine truth; also, the truth communicated.
• The act of an elevating or stimulating influence upon the intellect, emotions or creativity.
• A person, object, or situation which quickens or stimulates an influence upon the intellect, emotions or creativity.
• A new idea, especially one which arises suddenly and is clever or creative.