名詞 fax:

1. duplicator that transmits the copy by wire or radio
   同義詞：facsimile, facsimile machine

動詞 fax:

1. send something via a facsimile machine
   同義詞：telefax, facsimile

1. I was on vacation last week and didn't receive your fax.
   上星期我正在度假，沒收到你們的傳真。
2. After you think it over, please let me know by fax.
   你仔細考慮過之后，請用傳真相告。
3. Reservations can be made by letter or fax.
   可以來信或傳真預訂。

fax

n.（名詞）
See facsimile
參見 facsimile
v.tr.（及物動詞）
faxed,fax.ing,fax.es
To transmit (printed matter or an image) by electronic means.
傳真：用電訊方式傳遞信息（打印出事情或圖形）

來源：
Shortening and alteration of facsimile
facsimile的簡寫和變化