reference/'refərəns/

n. the act of looking at sth for information

n. [U] 参考，参照；查阅：Keep the dictionary on your desk for easy reference. 把词典放在书桌上，以便随时查阅。

◇a reference book 参考书

构词refer + -ence

音组-erence/-ərəns/

conference; difference; preference; reference