Something to be done; a practical duty, rather than an article of faith.
A brief, light, or informal literary composition, such as an essay or short story.
A rough design, plan, or draft, as a rough draft of a book.
A rapidly executed freehand drawing that is not intended as a finished work, often consisting of a multitude of overlapping lines.
An amusing person.
A lookout; vigilant watch for something.
A formal specification of a mathematical structure or a data type described in terms of a graph and diagrams (and cones (and cocones)) on it. It can be implemented by means of “models”, which are functors which are graph homomorphisms from the formal specification to categories such that the diagrams become commutative, the cones become limiting (i.e., products), the cocones become colimiting (i.e., sums).
A humorous newspaper article summarizing political events, making heavy use of metaphor, paraphrase and caricature.
A brief description of a person or account of an incident; a general presentation or outline.
A brief musical composition or theme, especially for the piano.
To make a brief, basic drawing.
To describe briefly and with very few details.
Sketchy, shady, questionable.