息子【むすこ】
son, penis
ため息【ためいき】
sigh
息子さん【むすこさん】
son
寝息【ねいき】
breathing of a sleeping person
息遣い【いきづかい】
breathing, respiration
生息【せいそく】
inhabiting, living
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
一息【ひといき】
one breath, time of one breath, pause, break, rest, breather, (doing in) one go, doing without stopping, small amount of effort, a little more effort
喘息【ぜんそく】
asthma
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
消息筋【しょうそくすじ】
informed circles
嘆息【たんそく】
sigh (of grief, disappointment, etc.), grieving, lamenting, deploring
生息地【せいそくち】
habitat, home (e.g. of the tiger)
終息【しゅうそく】
having ended, being resolved
子息【しそく】
(another's) son
息吹【いぶき】
breath, sign (of something new and fresh), breath (of spring, fresh air, etc.), vitality
一人息子【ひとりむすこ】
only son