男孩儿
nánháir · HSK 1
boy
👦 男 (male) + 孩 (child) + 儿 (Beijing erhua suffix)
男 means male, 孩 means child, so 男孩 is boy. The 儿 ending is the northern erhua suffix that adds a retroflex -r sound, giving nánháir instead of nánhái.
男 — field 田 + strength/plow 力
男 is a compound ideograph combining 田 (field) above 力 (strength, originally a picture of a plow). It depicted the one who works the fields with a plow, i.e. a male laborer, and by extension came to mean 'man' or 'male' in general.