(physics) equilibrium length (length of a spring, etc. at rest)

naturalists (as a group) or naturalist (individual), promoting a closer connection with nature (lifestyle, food, etc.)

spontaneous combustion

to spontaneously combust

natural right

all, pan-, omni-

counter for irregularly shaped objects such as desks, armrests, and serving trays / counter for kami and shrines

the last, the previous / pre- (of an era)

indicates a state (no specific semantic content)

(Buddhism) Short for 禅宗 (Zenshū): Zen Buddhism / a surname