ボスbosu

1. nounboss; leader; head
   まるでボスのような話し方はなしかたをする。↗

   You talk as if you were the boss.
2. noun, video gamesboss (difficult enemy, usu. at the end of a section or level)

• SynonymリーダーNeutralLoanword for someone who leads a team, as in 「チームリーダー」; stresses leading from the front, while 「ボス」 suggests the powerful boss or owner.
• SynonymチーフNeutralHead of an organization or department, as in 「チーフシェフ」; a post in charge on the spot, without the big-boss flavor of 「ボス」.
• Synonym上司じょうしNeutralA person above you in an organization, as in 「上司に相談」; the proper workplace term, whereas 「ボス」 is more casual and can also mean a gang boss.
• Synonym上役うわやくNeutralA superior in one's department; the word sounds a bit dated, with 「上司」 preferred today. 「ボス」 is more casual and can also mean a gang boss.
• Synonym親方おやかたNeutralA master or boss in traditional trades such as craftsmanship or a sumo stable; 「ボス」 is not limited to any trade and also means a video-game boss.
• Related棟梁とうりょうWrittenWritten word for a pillar supporting a nation or group; also a master carpenter. Unlike 「ボス」, it is not a general term for bosses or chiefs.
• RelatedフォアマンNeutralA foreman who supervises workers at a factory or construction site; rare in everyday use, whereas 「ボス」 can mean any kind of boss or chief.
• Related主任しゅにんNeutralThe person in charge of a task, or that post, as in 「学年主任」; an official job title, while 「ボス」 is a loose, general term.
• Related頭領とうりょうWrittenWritten, old-fashioned word for the head of a group or gang; in everyday speech, 「ボス」 is the usual word for a boss.
• Related職長しょくちょうNeutralA shop-floor job title for the worker who directs and supervises others in a factory; not used for bosses in general.
• Antonym部下ぶかNeutralA subordinate under someone's command, as in 「部下を持つ」; the opposite of 「ボス」 in the hierarchy of superior and subordinate.
• Antonym子分こぶんCasualColloquial for a henchman or underling who follows a boss; the opposite of the leader, 「ボス」 or 「親分」.

Use 「ボス」 for a boss, whether of a business, a group, or a video game, as in 「ラスボス」. In the workplace, the proper word for your superior is 「上司」, and 「リーダー」 for someone who leads a team; the opposites are 「部下」 and 「子分」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 親分おやぶん、親方おやかた。
2. 上司じょうし。
3. 車軸しゃじくの取り付とりつけを補強ほきょうする肉厚にくあつの部分ぶぶん。
4. ボスキャラクター。