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

loyalty

inmost, inside / heart, mind (also 心)

(formal) dear sirs, Messrs. (form of address used in formal letters, placed after the name of the organization to address members of that organization)

utility pole, telephone pole, telegraph pole, light pole

(Internet slang) nostalgiafag

(slang) methamphetamine addiction

station; one's post; stationed at / resident / stationary