adjectival noun:

• cool (temperature, color, etc.)
• cool (i.e. calm and collected)
• cool (i.e. fashionable, attractive, etc.)

noun:

• course (of medical treatment) - From German "Kur"
• season (series) of a television program (usu. 13 installments over a 3-month period) - From French "cours"

noun:

• cool jazz

noun:

• cool down

noun:

• cool biz; cool business; business casual (Japanese Ministry of the Environment (MOE) campaign encouraging people to wear lighter clothes and for companies to set their air conditioners to 28C, etc.) ➜ ウォームビズ

noun:

• one run of a television series - From English "one cours" ➜ クール

noun:

• two runs of a television series - From English "two cours" ➜ クール

noun:

• cool island

noun:

• cool color

noun:

• super cool biz; government campaign to wear lighter clothes, set conditioners higher, etc. ➜ クールビズ

noun:

• court bouillon - Food term

noun:

• Cool Japan (slogan)

noun:

• cool color

noun:

• kuru (degenerative brain disease usually associated with New Guinean cannabalism)

noun:

• cool island

noun:

• court bouillon - Food term

noun:

• cool biz; cool business; business casual (Japanese Ministry of the Environment (MOE) campaign encouraging people to wear lighter clothes and for companies to set their air conditioners to 28C, etc.) ➜ ウォームビズ

noun:

• cool jazz

noun:

• cool down

noun:

• cool-box

noun:

• Cool Japan (slogan)