'Picnic' definitions:

Definition of 'picnic'

From: WordNet
noun
A day devoted to an outdoor social gathering [syn: field day, outing, picnic]
noun
Any undertaking that is easy to do; "marketing this product will be no picnic" [syn: cinch, breeze, picnic, snap, duck soup, child's play, pushover, walkover, piece of cake]
noun
Any informal meal eaten outside or on an excursion
verb
Eat alfresco, in the open air; "We picnicked near the lake on this gorgeous Sunday"

Definition of 'Picnic'

From: GCIDE
  • Picnic \Pic"nic\, n. [Cf. F. piquenique. See Pick, v., and cf. Knickknack.] Formerly, an entertainment at which each person contributed some dish to a common table; now, an excursion or pleasure party in which the members partake of a collation or repast (usually in the open air, and from food carried by themselves). [1913 Webster]

Definition of 'Picnic'

From: GCIDE
  • Picnic \Pic"nic\, v. i. [imp. & p. p. Picnicked; p. pr. & vb. n. Picnicking.] To go on a picnic, or pleasure excursion; to eat in public fashion. [1913 Webster]

Synonyms of 'picnic'

From: Moby Thesaurus