狭 means 'narrow'

These four essays enable you to grouse about having too little. Perhaps you receive a pittance of a salary; both 蚊 and 涙 will help you express disappointment and anger about that, but you'll be talking about an animal's tears, not your own. Or maybe you live in a dime-sized space; if so, 狭 will let you complain that your abode feels crowded and cramped. Alternatively, you might gripe that your garden is tiny; calling it as small as a cat's (猫) forehead will get that point across.