家の中は寒くありません。

house; residence; dwelling; family; household; lineage; family name

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

inside; in; among; within; center (centre); middle; during; while

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

cold (e.g. weather); uninteresting (esp. joke); lame; dull; weak; corny

to be (usu. of inanimate objects); to exist; to live; to have; to be located; to be equipped with; to happen; to come about