occupier

Compared meaning: a person who lives somewhere (noun).

比较义项：居住在某处的人（名词）。

• resident

  Emphasizes someone who lives in a place long-term and belongs to its community, often used for towns, streets or buildings in official or everyday contexts, without implying legal ownership.

  resident强调长期居住在某地、属于当地社区的人，常用于城镇、街道或大楼等日常或官方语境，不涉及法律上的产权归属。

  Long-time residents held a meeting to discuss the proposed street closure.

  长期居住在当地的resident们召开会议，讨论拟议中的街道封闭方案。

• occupant

  Focuses on whoever is currently living in or using a specific unit, vehicle or seat, without regard to length of stay or legal status; common with 'current' or 'previous'.

  occupant侧重此刻实际居住在或使用某个房间、车辆或座位的人，不论居住时间长短或法律身份，常与current（目前的）或previous（此前的）连用。

  The apartment's previous occupant left behind some old furniture.

  这套公寓的前一任occupant留下了一些旧家具。

• occupier 本词

  Chiefly British and legal or property usage, naming the person who actually occupies a property as opposed to its owner or landlord, often in contracts, tax or rights contexts.

  occupier主要用于英式英语及法律、产权语境，指实际使用该房产的人（区别于业主或房东），常出现在合同、税务或权利相关的语境中。

  The building's occupier complained about the noisy construction.

  这栋大楼的occupier抱怨施工噪音太大。

Resident, occupant, and occupier all mean a person who lives somewhere. Resident means someone who lives long-term in a place. Occupant is whoever currently lives in a unit. Occupier is British legal, naming who occupies a property. Occupier as invader is not compared.

resident、occupant、occupier在“居住在某处的人”这个意义上很接近，但语气和使用场合不同：resident强调长期居住、具有社区身份，occupant强调此刻实际住在某处而不论时长，occupier则多见于英式英语的法律或产权语境。这里不比较occupier表示“占领者”（如军事占领一国）的用法。