Using the broadest definition of the word, a condiment is a substance, sauce or herb, (I'm going to include spreads as well) added to food to enhance its flavour. There is an unbelievable number of different condiments available. Take a look in your pantry and your fridge and you'll probably find numerous examples...you may also want to check the use by dates on them while you're there.
There are really obvious and popular examples like salt and pepper, tomato sauce, mayonnaise and peanut butter. There are also less well known condiments such as caramelized balsamic vinegar, sesame spread, sambal oeleck and mango, lime and chili dressing.
The knowledge and or use of these various condiments depends on individual taste and culinary daring. I tend to steer away from the exotic ones and purposefully avoid such unpleasantries as Vegemite and worcestershire sauce. But each to their own right?
Most people add something to their food to improve the flavour because they want good taste: an enjoyable food experience, not just another boring meal. Usually, it's not the case that the food is bad, but more that it is better with a condiment: more exciting even.
His mates were thrilled when he announced that he was getting married. There was an explosion of handshaking and backslapping as he made the announcement over a round of beer at the local pub. They offered hearty congratulations and well wishes to him, except for one of his friends who asked, with zero tact, why the hell he would do that. Why would he tie himself to one woman for the rest of his life?
The mood at the table soured immediately as the man's joy was challenged by this one dissenting voice. The man sipped his beer, gathering his thoughts, before he replied to his friend's question, "Because women are not condiments."
Disgruntled, the friend who loved women in the same way he loved food, walked away. The celebrations resumed in the wake of his departure.