of; structural particle: used before a noun, linking it to preceding possessive or descriptive attributive[cedict]
really and truly[cedict]
aim; clear[cedict]
安全
ān quánㄢ ㄑㄩㄢˊ
safe; secure; safety; security[cedict]
通行证
tōng xíng zhèngㄊㄨㄥ ㄒㄧㄥˊ ㄓㄥˋ
a pass (authorization through a checkpoint); a laissez-passer or safe conduct; to authenticate; to confirm name and password on a website; fig. a condition giving access to benefits (e.g. a diploma as a pass to a career)[cedict]