下働き[shitabataraki] subordinate work
共働き[tomobataraki] (husband and wife) both working
勤め働く[tsutomehataraku] to work diligently
軽労働[keiroudou] light labor
港湾労働者[kouwanroudousha] longshoreman

自働[jidou] automatic
自働化[jidouka] automation
実働時間[jitsudoujikan] actual work hours
囚人労働[shuujinroudou] prison labor
重労働[juuroudou] heavy labor

ご苦労様[gokurousama] thank you very much for your ...
御苦労さん[gokurousan] I appreciate your efforts
慰労[irou] recognition of services
過労[karou] overwork
過労死[karoushi] death from overwork and mental stress

気苦労[kigurou] worry
漁労[gyorou] fishing
共労者[kyourousha] coworker
勤労[kinrou] labor
勤労階級[kinroukaikyuu] salaried class

一利一害[ichiriichigai] advantages and disadvantages
煙害[engai] smoke pollution
加害[kagai] assault
加害者[kagaisha] assailant
禍害[kagai] evil

害悪[gaiaku] harm
害虫[gaichuu] harmful insect
害鳥[gaichou] vermin
害毒[gaidoku] harm

火災[kasai] conflagration
火災保険[kasaihoken] fire insurance
核災害[kakusaigai] nuclear disaster
公務災害[koumusaigai] accidents in line of duty
災い[wazawai] calamity

災禍[saika] accident
災害[saigai] calamity
災難[sainan] calamity
災難に遭う[sainanniau] to meet with misfortune
災厄[saiyaku] calamity