The term 'BORES' is defined by seven crossword solutions: DIAMETERS (9 letters), NUDNIKS (7 letters), IRKS (4 letters), BORES (5 letters), TIRES (5 letters), WEARSON (7 letters), and CALIBERS (8 letters). All of these words refer to someone or something that is dull, tedious, or tiresome. DIAMETERS and CALIBERS refer to the size of a hole or opening, suggesting that the PERSON or thing is so dull that it is like a hole with no end. NUDNIKS and WINDBAGS are both terms for people who talk too much, often about uninteresting topics. IRKS and TIRES are both verbs meaning to annoy or exhaust, while WEARSON is a combination of the words 'WEAR' and 'PERSON', suggesting that the PERSON is so boring that they WEAR out the listener.