Warning
Advice, Caution
noun, verbal noun, の adjective
けいこく
警告 (けいこく) Warning, Advice, Caution
渓谷 (けいこく) Valley, Ravine, Canyon
注意 (ちゅうい) Caution, Attention, Warning
忠告 (ちゅうこく) Advice, Admonishment
戒告 (かいこく) Admonition, Warning
訓戒 (くんかい) Warning, Admonition
警戒 (けいかい) Vigilance, Precaution
Warning, cake けい and coke こく don't mix.
Warning, cake けい cocks こく must be of the animal variety.