"及" When it uses as a verb, it means:1.reach some standard,eg. 考试及格（pass the exam）2.uses in phrase 来不及 and 赶不及,means there is no enough time (to do sth) eg.我来不及写信给他了（There's no time for me to write a letter to him.） When it uses as a conjunction, it just means and.

<动> 1.（达到） reach; come up to: 2.（够得上; 比得上） can compare with; be comparable; be up to: 3.（赶上） be in time for: <连> 1.（连接并列的名词或名词性词组） and: <介> 1.（到） to:

Explanations of 及 vary among different parts of speech. There are roughly 3 types of parts of speech for 及. As conjunction: It equals to "and" in English. Example: 義大利隊及英國隊皆晉級總決賽。Team Italy and team UK both qualify for the final. 這裡賣的最好的產品是iPhone及iPad。Bestsellers here are iPhone and iPad. As preposition: To introduce time, usually going with words and making prepositional phrases, such as 及早，及時。 Example: John及早抵達機場，避開人潮。 John arrives the airport before his schedule and beats the crowds. John及時抵達機場，趕上了飛機。John arrived the airport in time and caught the plane. 及時行樂。 Carpe diem. As verb: Again, going with words to form verb phrases. 1. To reach, to catch up with 快點，快要來不及了! Hurry up, we are about to be late! 現在還來得及買他們的禮物。There's still time to shop for their gifts. 2. To implicate, to involve 老吾老以及人之老。Take good care of your senior next of kins as well as other unrelated seniors in an unselfish manner. Chinese version of "Love thy neighbour as thyself." John涉及多起犯罪。John is involved in several different crimes. 3. To attain, to achieve John數學考試第一次及格。John has passed his math exam for the first time. John數學考試第一次不及格。John has failed his math exam for the first time.

一般做连接用，