What do you mean "no"? Here's your dictionary.com definition. See #4:

noun

1. one of a scattered group of people that traces its descent from the Biblical Hebrews or from postexilic adherents of Judaism; Israelite.

2. a person whose religion is Judaism.

adjective

4. Offensive. of Jews; Jewish.

verb (used with object)

5. jew, Extremely Disparaging and Offensive. to bargain sharply with; beat down in price (often followed by down).: See Usage note at the current entry.

So again, "Jew" as an adjective is a slur. Say "Jewish" instead, unless you're using "Jew" as a noun.