- MONOLINGUAL -

Dizionario ragionato dei sinonimi e dei contrari, G. Cesana, © De Vecchi Editore 1967

Vocabolario della lingua italiana, Nicola Zingarelli, © Zanichelli 1971

vocabolario della lingua italiana, aa.vv., © Garzanti 1979

the gregg reference manual, W. A. Sabin, © McGraw-Hill 1985

New Dictionary of American Slang, R. L. Chapman, © Harper & Row 1987

Dictionary of business english, J H Adam, Longman - York Press, ©  Librairie du Liban 1989

Oxford Advanced Learner's Dictionary of Current English, AS Hornby, © Oxford Univ. Press 1989

il grande dizionario garzanti della lingua italiana, aa.vv., © Garzanti Editore 1990

21st century dictionary of slang, Watts & Princeton Lang. Inst., © The Philip Lief Group 1994

dictionary of legal terms, S. H. Gifis, © Barron's 1998

webster's unabridged dictionary, aa.vv., © Random House 2001

Collins cobuild Dictionary of Idioms, aa.vv., © HarperCollins Publishers 2002

Longman Dictionary of Common Errors, Turton & Heaton, © Longman/Pearson 2003

Longman Dictionary of English Language and Culture, aa.vv., © Pearson 2005

il devoto-oli Vocabolario della lingua italiana 2011, © Le Monnier-Mondadori 2011 + CD Rom

macmillan Phrasal Verbs Plus, aa.vv., © Macmillan Publishers 2011

synonyms and antonyms english dictionary, aa.vv., © Hoepli/Chambers 2011

idioms from British and American English, aa.vv., © Hoepli/Chambers 2011