| A | B |
|---|
| telephone | typically a single unit including a handset with a transmitting microphone and a set of numbered buttons |
| autograph | signature |
| microscope | optical instrument used for viewing very small objects |
| photograph | picture made using a camera |
| televise | transmit by television |
| biology | the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution |
| microphone | an instrument for converting sound waves into electrical energy variations, which may then be amplified, transmitted, or recorded |
| paragraph | a distinct section of a piece of writing, usually dealing with a single theme and indicated by a new line, indentation, or numbering |
| symphony | an elaborate musical composition for full orchestra, typically in four movements, at least one of which is traditionally in sonata form |
| telegraph | a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection |
| megaphone | a large funnel-shaped device for amplifying and directing the voice |
| microwave | an electromagnetic wave with a wavelength in the range 0.001–0.3 m, shorter than that of a normal radio wave but longer than those of infrared radiation |
| photocopy | a photographic copy of printed or written material produced by a process involving the action of light on a specially prepared surface |
| biography | an account of someone's life written by someone else |
| saxophone | a member of a family of metal wind instruments with a single-reed mouthpiece, used especially in jazz and dance music |
| telescope | an optical instrument designed to make distant objects appear nearer, containing an arrangement of lenses, or of curved mirrors and lenses, by which rays of light are collected and focused and the resulting image magnified |
| calligraphy | decorative handwriting or handwritten lettering |
| xylophone | a musical instrument played by striking a row of wooden bars of graduated length with one or more small wooden or plastic mallets |
| homophone | each of two or more words having the same pronunciation but different meanings, origins, or spelling, e.g., new and knew. |
| homograph | each of two or more words spelled the same but not necessarily pronounced the same and having different meanings and origins |
