| COG | tooth on the rim of gear wheel |
|---|---|
| COG | join pieces of wood with cogs |
| COG | roll steel ingots |
| COG | railway for steep mountains |
| COG | the quality of being logically valid |
| COG | persuasive relevance |
| COG | powerfully persuasive |
| COG | having the power to influence or convince |
| COG | any factual evidence that helps to establish the truth of something |
| COG | having cogs |
| COG | move unsteadily |
| COG | walk unsteadily, as of small children |