Denoting relation to some thing or person that is superior, weighs upon, oppresses, bows down, governs, directs, influences powerfully, or the like, in a relation of subjection, subordination, obligation, liability, or the like; as, to travel under a heavy load; to live under extreme oppression; to have fortitude under the evils of life; to have patience under pain, or under misfortunes; to behave like a Christian under reproaches and injuries; under the pains and penalties of the law; the condition under which one enters upon an office; under the necessity of obeying the laws; under vows of chastity.
                                                            
                                                     
                        
                                                
                        
                        
                            Denoting relation to something that exceeds in rank or degree, in number, size, weight, age, or the like; in a relation of the less to the greater, of inferiority, or of falling short.
                                                            
                                                     
                        
                                                
                        
                        
                            Denoting relation to something that comprehends or includes, that represents or designates, that furnishes a cover, pretext, pretense, or the like; as, he betrayed him under the guise of friendship; Morpheus is represented under the figure of a boy asleep.
                                                            
                                                     
                        
                                                
                                                     
                        
                        
                            Less specifically, denoting the relation of being subject, of undergoing regard, treatment, or the like; as, a bill under discussion.
                                                            
                                                     
                        
                                                
                        
                        
                            In a lower, subject, or subordinate condition; in subjection; -- used chiefly in a few idiomatic phrases; as, to bring under, to reduce to subjection; to subdue; to keep under, to keep in subjection; to control; to go under, to be unsuccessful; to fail; to go bankrupt.
                                                            
                                                     
                        
                                                
                        
                        
                            Lower in position, intensity, rank, or degree; subject; subordinate; -- generally in composition with a noun, and written with or without the hyphen; as, an undercurrent; undertone; underdose; under-garment; underofficer; undersheriff.
                                                            
                                                     
                        
                                                
                        
                        
                            lower in rank, power, or authority; "an under secretary" 
                                                            
                                                     
                        
                                                
                        
                        
                            in or into a state of subordination or subjugation; "we must keep our disappointment under"