In many languages, terms denoting the human body and its parts constitute a closed subclass of nouns with special grammatical properties. Many if not all parts of the human body may acquire dimensions of meanings with ethnographic importance. I focus on a tri-partite division of visible and invisible parts of a human and their attributes in Manambu, a Ndu language spoken in the East Sepik province of Papua New Guinea. The trichotomy of 'body' (səp), 'mind' (mawul) and 'spirit' (kayik) in Manambu reflects a culturally embedded conceptualization of what a human is. Each of the three taxonomic units has specific grammatical properties. The physical and mental profile of a human being in Manambu (as in many other languages) cannot be appreciate...