息子【むすこ】
son, penis
息【いき】
breath, breathing, tone, mood
利息【りそく】
interest (on a loan, deposit, etc.)
消息【しょうそく】
news (from someone), letter, contact, (someone's) whereabouts, (someone's) movements
窒息【ちっそく】
suffocation, choking, asphyxia
休息【きゅうそく】
rest, relief, relaxation
息切れ【いきぎれ】
shortness of breath, panting, puffing, running out of steam (of the economy, a project, etc.), losing momentum, loss of efficiency
嘆息【たんそく】
sigh (of grief, disappointment, etc.), grieving, lamenting, deploring