If you have been using Rikai, you will notice the beginning information in parenthesis. This is the Part of Speech markers used in edict.
Below is a short list of common POS markers that you will encounter. For a full list refer to Jim Breen’s eDict Lexographical Details.
adj-i adjective (keiyoushi) adj-na adjectival nouns or quasi-adjectives (keiyodoshi) adj-no nouns which may take the genitive case particle `no' adv adverb (fukushi) adv-n adverbial noun conj conjunction ctr counter exp Expressions (phrases, clauses, etc.) n noun (common) (futsuumeishi) n-adv adverbial noun (fukushitekimeishi) n-pref noun, used as a prefix n-suf noun, used as a suffix pn pronoun pref prefix prt particle suf suffix vi intransitive verb vn irregular nu verb vs noun or participle which takes the aux. verb suru vs-i suru verb - irregular vt transitive verb