v. to formulate theories, especially about some specific subject
v. to speculate
the GNU version of the Collaborative International Dictionary of English
verb-intransitive. To form a theory or theories; to form opinions solely by theory; to speculate.
The Century Dictionary and Cyclopedia
To form a theory or theories; form opinions solely by theory; speculate. Also spelled theorise.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
v. construct a theory about
v. form or construct theories
v. to believe especially on uncertain or tentative grounds
Word Usage
"Humanity loves to theorize, which is why we have all those scientific theories, which are really nothing more than practically useful conspiracy theories."