adj
1. surprisingly and unceremoniously brusque in manner
e.g. an abrupt reply
2. exceedingly sudden and unexpected
e.g. came to an abrupt stop
an abrupt change in the weather
3. extremely steep
e.g. an abrupt canyon
the precipitous rapids of the upper river
the precipitous hills of Chinese paintings
a sharp drop
Synonym: precipitoussharp
4. marked by sudden changes in subject and sharp transitions
e.g. abrupt prose
Synonym: disconnected
noun
1. the act of forcing something out by squeezing or pressing
e.g. the expression of milk from her breast
2. the feelings expressed on a person's face
e.g. a sad expression
a look of triumph
an angry face
Synonym: lookaspectfacial expressionface
3. a group of words that form a constituent of a sentence and are considered as a single unit
e.g. I concluded from his awkward constructions that he was a foreigner
Synonym: constructiongrammatical construction
4. a group of symbols that make a mathematical statement
Synonym: formula
5. expression without words
e.g. tears are an expression of grief
the pulse is a reflection of the heart's condition
Synonym: manifestationreflectionreflexion
6. the style of expressing yourself
e.g. he suggested a better formulation
his manner of expression showed how much he cared
Synonym: formulation
7. the communication (in speech or writing) of your beliefs or opinions
e.g. expressions of good will
he helped me find verbal expression for my ideas
the idea was immediate but the verbalism took hours
Synonym: verbal expressionverbalism
8. a word or phrase that particular people use in particular situations
e.g. pardon the expression
Synonym: sayinglocution
9. (genetics) the process of expressing a gene
noun
1. the act of laying out (as by making plans for something)
2. a plan or design of something that is laid out