灰塵: ash and dust; something worthless / 灰燼: ash and cinders / 怪人: someone mysterious (in a negative way) / 芥塵: trash, rubbish / 海人: someone who lives by the sea; a fisherman or fisherwoman

アラビア人: Arab person

steadily, slowly but continuously / (onomatopoeia) oozing, seeping

a cough

lagoon

height, stature

to analyze

infrared radiation / Short for 赤外線通信 (sekigaisen tsūshin, “IR communication”).

olivine, peridot

obsidian