億兆[okuchou] the people
吉兆[kicchou] lucky omen
凶兆[kyouchou] evil omen
衰兆[suichou] signs of decline
兆す[kizasu] to show signs (symptoms)

兆民[choumin] the whole nation
兆し[kizashi] signs
前兆[zenchou] omen
兆候[choukou] sign

育成栽培[ikuseisaibai] vegetable and fruit growing
栽培[saibai] cultivation
栽培種[saibaishu] agricultural species
栽培所[saibaijo] plantation
純粋培養[junsuibaiyou] clean (pure) culture

促成栽培[sokuseisaibai] raising out-of-season crops with artificial heat
培う[tsuchikau] to cultivate
培養[baiyou] cultivation
培養液[baiyoueki] culture fluid
培地[baichi] culture medium