What I have on my resume is something like: "Languages: French and English, spoken and written. Functional Spanish skills [I actually can understand if the speaker is mindful or if it's news and stuff, and can speak somewhat fluently after a few days of immersion, albeit without much vocabulary and now my verbs get a bit mixed up]. Interest for other modern languages." which means that I have learned bits of Arabic, Croatian and German, (enough to grab the purpose of a simple document - although not Arabic anymore!!) and like learning new languages. That's as far as I go...

I find that my French gets a bit dull as my English becomes more sophisticated. I really value excellent language skills, both written and spoken. It's really hard to keep many languages extremely sharp, but I easily believe one can be fluent - i.e. entertain decent conversation about more than just the weather and understand most non-specialized documents - in five or six languages - possibly more - if one gets to practice them a few times a month each.