New World warbler new·world·warb·ler uncommon noun 1. small bright-colored American songbird with a weak unmusical song SynonymsNew World warblerwood warbler Related words Broader terms warbler Narrower terms parula warblerWilson's warblerflycatching warblerCape May warbleryellow warblerBlackburnAudubon's warblermyrtle warbler Parts Parulidae WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.