■ cancell キャンセルする、（予約などを）取り消す
ex) Are there fees for cancelling reservations?
予約取り消しに キャンセル料はかかりますか？

cancell: to stop doing or planning to do (something) : to decide that something (such as a game, performance, etc.) will not happen
ex) My flight was canceled because of the storm.
嵐のため、私の予約していた飛行機は キャンセルとなった

■ cancellation （予約・計画など）取り消し
ex) Trip cancellation insurance is available for purchase from a wide range of companies.
旅行キャンセル保険が 多くの会社から購入可能である

cancellation: the action of canceling something that has been arranged or planned
ex) Cancellations made between 29 days and 48 hours prior to the tour date are eligible for a 50% refund. 旅行開始の29日前から 48時間前までの 旅行の予約取り消しは、50% の返金が適用される

■ be charged $... ...ドルを請求される
ex) Customers will be charged a Yen 500 cancellation fee.
500円の取消料が 請求されるでしょう

charge: : to ask for money in return for providing or doing something
ex) If the reservation is canceled more than 30 days before check-in, the fee is 10% of the reservation amount.
ホテル宿泊の 30日前までのキャンセルには、代金の10% の取消料が生じます

■ refund　　返金
ex) The closer to your arrival date you cancel, the less money you will receive back as a refund.
キャンセルの際 出発日が近いほど 戻ってくる返金額は少なくなる

refund: an amount of money that is given back to someone who has returned a product, paid too much, etc.
ex) Your refund will be issued to your original payment method.
キャンセルの返金は 入金と同じ方法で 金額が戻ります

■ refund　　返金する
ex) For trips two days or shorter, we'll refund the trip price and trip fee minus half of the average of one day's cost.
２日、或いはそれより短い旅行の場合、当社は １日分の旅費の半額を差し引いて 差額を返金いたします

refund: to give back money that someone paid for something (such as a product that was returned or a service that was not acceptable)
ex) For cancellations 61 days or more before the trip, deposit will be refunded minus a $50 booking fee.
旅行開始の 61日前、或いはそれ以前のキャンセルに関しては、預り金から $50ドルの 予約手数料を差し引いた 金額を返金いたします

■ refundable 返金できる、返金の対象となる
ex) Are plane tickets refundable?
航空券は 返金の対象になりますか？

refundable: able to be returned after you have bought it
ex) Refundable tickets are fully refundable, meaning you'll get the cash back,not a flight credit.
返金可能のチケットは 現金で全額が戻り、金額がポイント換算されることはありません