人口【じんこう】
population, common talk
二人【ふたり】
two persons, two people, pair, couple
個人【こじん】
individual, private person, personal, private, natural person
外国人【がいこくじん】
foreigner, foreign citizen, foreign national, alien, non-Japanese
人気【にんき】
popularity, public favor, condition (e.g. market), tone, character, nature
人間【にんげん】
human being, human, person, man, mankind, humankind, character (of a person)
人々【ひとびと】
people, men and women, each person, everybody
日本人【にほんじん】
Japanese person
老人【ろうじん】
old person, senior citizen, the aged, the elderly
新人【しんじん】
new face, newcomer, rookie, fresh recruit, modern humans (from Cro-Magnon man onwards)
人生【じんせい】
(one's) life
人事【じんじ】
personnel affairs, human affairs, human resources, HR
法人【ほうじん】
corporation, corporate body, company, legal entity, legal person, juridical person
人権【じんけん】
human rights, civil liberties
人民【じんみん】
the people, citizens, the populace
人物【じんぶつ】
person, character, figure, personage, man, woman, one's character, one's personality, able person, talented person
本人【ほんにん】
the person in question, the person themselves, said person
一人【ひとり】
one person, being alone, being by oneself, being single, being unmarried, by oneself, alone, just, only, simply
夫人【ふじん】
wife, Mrs, madam, wife of a nobleman (aristocrat, etc.), consort of the emperor
友人【ゆうじん】
friend