観測【かんそく】
observation, survey, measurement, opinion, prediction, thinking
観光【かんこう】
sightseeing, tourism
観客【かんきゃく】
spectator, audience
観察【かんさつ】
observation, survey, watching
悲観【ひかん】
pessimism, (taking a) gloomy view, discouragement, despondency, despair, disappointment
客観的【きゃっかんてき】
objective
観衆【かんしゅう】
spectators, onlookers, members of the audience
客観【きゃっかん】
objectivity, objective, object (philosophical)
楽観的【らっかんてき】
optimistic, hopeful
外観【がいかん】
outward appearance, exterior appearance, outward show, looks
観念【かんねん】
idea, notion, concept, conception, sense (e.g. of duty), resignation (to one's fate), acceptance, preparedness, observation and contemplation, meditation
観賞【かんしょう】
admiration, appreciation, enjoyment, viewing (for pleasure)
先入観【せんにゅうかん】
preconception, preconceived notion, prejudice
観覧【かんらん】
viewing
主観【しゅかん】
subjectivity, subject (philosophical), ego, one's personal opinion, one's own idea
傍観【ぼうかん】
looking on, standing by and watching, sitting back and watching, remaining a spectator
主観的【しゅかんてき】
subjective