NOUN (1)

1. combination breakfast and lunch; usually served in late morning;


VERB (1)

1. eat a meal in the late morning;
- Example: "We brunch in Sundays"

The Collaborative International Dictionary of English v.0.48:

brunch \brunch\ n.
   1. a late breakfast or an early lunch.
      [WordNet 1.5]

WordNet (r) 3.0 (2006):

brunch
    n 1: combination breakfast and lunch; usually served in late
         morning
    v 1: eat a meal in the late morning; "We brunch in Sundays"

Moby Thesaurus II by Grady Ward, 1.0:

27 Moby Thesaurus words for "brunch":
   TV dinner, alfresco meal, barbecue, breakfast, buffet supper,
   clambake, coffee break, cookout, diner, dinner, elevenses,
   fish fry, high tea, hot luncheon, lunch, luncheon, mash,
   meat breakfast, petit dejeuner, picnic, supper, tea, tea break,
   teatime, tiffin, wiener roast, wienie roast