"Intensation" is a lesser-known word that holds a significant meaning. While there are no direct synonyms for this particular term, several alternate words convey similar ideas. "Perception", for instance, refers to the ability to understand or interpret something through the senses. "Awareness" also reflects the state of being conscious or having knowledge about a particular fact or situation. Another possible synonym is "apprehension", which conveys the act of understanding or perceiving something intuitively. "Discernment" refers to the ability to distinguish or recognize specific details or patterns. In essence, though direct synonyms for "intensation" may be scarce, these alternative words capture the essence of perceiving, understanding, and being aware of one's surroundings.