Vocabulary

automatic direction finder; ADF

automatic train stop; ATS

automatic train control; ATC

automobile insurance

automobile tax; vehicle tax

car phone; car telephone

self-winding watch

automatic coupler

autopilot

self-satisfaction; self-complacency; complacency

study time

barely keeping a business going (analogy that a bicycle falls over when its wheels cease rotating)

natural person; person unspoiled by civilization; noble savage

force(s) of nature

naturalist

physical geography

(dying of) natural causes

natural law

nature conservation

natural beauty

spontaneous combustion

spontaneous generation; abiogenesis

natural foods; organic food

nature worship

natural phenomenon (phenomena)

natural selection

Japanese yam (Dioscorea japonica)

Nature Conservation Act

perspective on nature

self-publishing; publishing at one's own expense

drowning one's cares in drink; drinking in desperation

drowning one's cares in drink

signature; autograph; signing one's name

(the act of) disintegration

right of self defense; right of self defence

masturbation

selfish(ness)

vigilante group; neighborhood watch; self-defense group

vigilante; member of a vigilante group

adopting a son-in-law into one's family; marrying off one's daughter