a self-contained component (unit or item) that is used in combination with other components | the work of providing treatment for or attending to someone or something |
computer circuit consisting of an assembly of electronic components (as of computer hardware) | a courteous act indicating affection |
detachable compartment of a spacecraft | a motionless erect stance with arms at the sides and feet together; assumed by military personnel during drill or review |
one of the inherent cognitive or perceptual powers of the mind | the process whereby a person concentrates on some features of the environment to the (relative) exclusion of others |
| the faculty or power of mental concentration |
| a general interest that leads people to want to know more |