Opinions and questions (meningen, det passer, stille et spørgsmål)

Same word, new meaning

Det passer

When the subject is something someone said, passe means "to be true". Det passer! is "That's true!", and Det passer ikke! is a common, rather strong way to say "That's not true!":

Klar: ready, or clear

Said about a person, klar usually means "ready" (Er du klar?, være klar til). Said about an answer, a message or a mistake, it usually means "clear": easy to see, hear or understand.

Your opinion, and your questions

meningen is "the opinion". Sige sin mening is to say what you think:

The usual way to ask a question is to place it: stille et spørgsmål. When there is no spørgsmål in the sentence, spørge does the job: Må jeg spørge om noget?

Bestemt and ens

After a verb, bestemt usually means "definitely". Before a noun it usually means "particular, certain", and it takes -e in the plural and after den/det (bestemte regler, det bestemte sted), but no extra -t in the neuter: en bestemt dag, et bestemt sted.

You know ens as "one's" (ens familie). Used as an adjective, it means "alike, identical", and it never changes form. Se ens ud is "to look alike".