return

Compared meaning: profit or benefit from investment or effort (noun).

比较义项：投资或努力带来的回报、收益（名词）。

• return 本词

  General, common word for the profit or benefit gained from an investment or effort; often used in the phrase 'return on investment', and can mean either a lump sum or a rate.

  通用、常见的词，指从投资或努力中获得的利润或收益；常用于“return on investment（投资回报）”这一短语中，既可以指一笔总金额，也可以指一个比率。

  Real estate can offer a better return than a regular savings account.

  房地产投资往往比普通储蓄账户带来更好的回报。

• yield

  More technical and formal; specifically the rate of profit or income that an investment produces, expressed as a percentage, common in finance for bonds, stocks and savings.

  更具技术性、更正式，特指投资产生的收益率，以百分比表示，常用于债券、股票和储蓄等金融语境。

  Investors were pleased with the high yield on their bond portfolio.

  投资者对他们债券投资组合的高收益率感到满意。

• payoff

  Informal, everyday word for the reward or benefit that comes after effort, risk or time invested; not necessarily financial, and often used about personal achievement.

  非正式、日常用词，指经过努力、冒险或时间投入后获得的回报；不一定是金钱上的，常用于个人成就方面。

  All those years of hard work finally had a payoff when she got promoted.

  多年的辛苦努力终于在她获得晋升时得到了回报。

Return, yield and payoff all mean a benefit from investment or effort. Return is the general word for investment profit. Yield is technical, an investment's rate of income. Payoff is informal, a reward after effort or risk, not always money. Other meanings are not compared.

这三个词都可以表示“回报”或“收益”，但 return 泛指从投资或努力中获得的收益，yield 更强调投资的收益率，常用于债券、股息等正式金融语境，而 payoff 强调经过努力或冒险后最终得到的回报，不一定是金钱。这里不比较 return 的“归还”义、yield 的“产量”或“屈服”义，以及 payoff 在其他语境中的“贿赂”义。

Compared meaning: to give money or something back (verb).

比较义项：把钱或物归还给原来拥有它的人（动词）。

• return 本词

  General word for giving something back to whoever had it before; not limited to money, and works for objects, favors, or loans alike.

  泛指把东西归还给原本拥有它的人，不限于金钱，也可用于物品或恩惠。

  Please return my umbrella when you're done with it.

  你用完之后请把我的雨伞还给我。

• repay

  Specifically about paying back money that was borrowed or owed, often implying a debt or obligation; can also mean repaying a favor.

  专指偿还所借或所欠的钱款，带有债务或义务的意味，也可用于报答恩情。

  I promise to repay the money you lent me last month.

  我保证会把你上个月借给我的钱还给你。

• refund

  Specifically used when a seller or business gives back money a customer has already paid, usually for returned or unsatisfactory goods.

  专指商家或卖方把顾客已支付的钱退还回去，通常用于退货或对商品不满意的情况。

  The store gave me a refund because the shoes were too small.

  因为鞋子太小，商店给我退了款。

All three words mean to give something back. Return is the most general word, for any object, money, or favor. Repay specifically means paying back borrowed money, or repaying a favor. Refund specifically means a seller gives back money a customer already paid.

这三个词都含“归还”之意，但对象和场合不同：return最通用，可指归还任何物品或钱款；repay专指偿还欠款，也可表示报答恩情；refund专指商家把顾客已付的货款退还。这里不比较repay的“报复”义项。