観測[kansoku] observation
観測ヘリコプター[kansokuherikoputaa] observation helicopter
計測[keisoku] measurement
再測量[saisokuryou] resurvey
三角測量[sankakusokuryou] triangulation

実測[jissoku] survey
実測図[jissokuzu] measured map
写真測量[shashinsokuryou] photographic surveying
推測[suisoku] guess
測候所[sokkoujo] weather measurement station

臆説[okusetsu] hypothesis
臆念[okunen] something one always remembers
臆病[okubyou] cowardice
臆面[okumen] shy face
臆面もない[okumenmonai] bold

臆面もなく[okumenmonaku] boldly
剛臆[gouoku] bravery and cowardice
臆測[okusoku] guess
臆断[okudan] jumping to hasty conclusions
臆する[okusuru] to be hesitant