core areas: sociolinguistics, descriptive linguistics, applied linguistics, and language education (teaching English as a foreign language),  including:

language variation: informal, sociocultural, occupational, ethnic, stylistic, and geographical varieties; World Englishes, esp. North American English, African American English, Yinglish, Spanglish, Ponglish; youth speech

language description and documentation: lexicography, linguistic fieldwork, data collection; lexicon, informal language, language contact, borrowing; language change, neologism

applied linguistics and language education: teaching English as a foreign language,esp. resources for teaching vocabulary and pronunciation; specialized and learners’ dictionaries; English in sociocultural context


numerous fieldwork-based sociolinguistic and lexicographic projects

core themes: language variation and language description, including:

Informal English in the EFL Context, 2015-present

Borrowings in Informal American English, 2015-2019

Spanish Loanwords in American Slang, 2012-2015

English Borrowings in Colloquial Polish, 2011-present

Canadian Slang and Colloquialism, 2011-present

Yiddish Loanwords in American Slang, 2010-2013

Yiddishisms in North American English, 2009-2012

African American Slang, 2009-2013

Lexicon of African American English, 2009-2012

Informal Toponyms in North American English, 2009-2011

Polish Students’ Slang, 2008-present

Americanisms and Briticisms. Contrastive Studies, 2006-2008

Translation of British Slang, 2003-2006

British Slang and Colloquialism, 2003-2006

Lexicon of British English in the EFL Context, 2002-2004

Lexicon of American English in the EFL Context, 2002-2004

Slang and its Linguistic Description, 1999-present

American Slang in Lexicography, 1993-1996

The F-Word and its Derivatives, 1992-1994

Translation of Polish Slang, 1992-1998

Polish Slang and Colloquialism, 1992-present

Translation of North American Slang, 1990-present

American Slang and Colloquialism, 1990-present


Santander Universidades

Danish Agency for Universities and Internationalization

U.S. Fulbright Foundation

Foundation for Polish Science

British Council

U.S. Information Agency


Stanford University, Stanford, California

University of California Los Angeles, California

University of Washington

University of Arizona

Arizona State University

University of New Mexico, Albuquerque, New Mexico

San Francisco State University, California

City University of New York, New York

Simon Fraser University, Vancouver, British Columbia

Univ. of British Columbia, Vancouver, British Columbia

McGill University, Montreal, Quebec

University of Ottawa, Ottawa, Ontario

University of Toronto, Toronto, Ontario

Center for Jewish History, New York

YIVO Institute for Jewish Research, New York

University of Wisconsin, Madison, Wisconsin

University of Chicago, Chicago, Illinois

Princeton University, Princeton, New Jersey

Harvard University, Cambridge, Massachusetts

Yale University, New Haven, Connecticut

Library of Congress, Washington, DC

University of Richmond, Virginia

University of North Carolina, Chapel Hill, North Carolina

Duke University, Durham, North Carolina

Florida State University, Tallahassee, Florida

University of Florida, Gainesville, Florida

University of Northern Florida, Jacksonville, Florida

University of Southern Florida, Tampa, Florida

University of Miami, Coral Gables, Florida

University of Alabama, Tuscaloosa, Alabama

University of Mississippi, Oxford, Mississippi

Tulane University, New Orleans, Louisiana

Livingston Masonic Library of Grand Lodge, New York

New York University, New York

Columbia University, New York

Syddansk Universitet, Kolding

University of Calgary, Calgary, Alberta

University of Tennessee, Knoxville, Tennessee

University of California Berkeley, California

University of California San Diego, California

British Library, London

University of Exeter, Exter, Devonshire

Suidafrikaanse Instituut, Amsterdam

Washington University, St. Louis, Missouri

New York Public Library, New York