Open English Wordnet
Nouns
(n)street fighter, toughsomeone who learned to fight in the streets rather than being formally trained in the sport of boxing Adjectives
(a)toughnot given to gentleness or sentimentality“a tough character” (s)rugged, toughvery difficult; severely testing stamina or resolution“a rugged competitive examination”,
“the rugged conditions of frontier life”,
“the competition was tough”,
“it's a tough life”,
“it was a tough job” (a)tough, toughenedphysically toughened“the tough bottoms of his feet” (s)sturdy, toughsubstantially made or constructed“sturdy steel shelves”,
“sturdy canvas”,
“a tough all-weather fabric”,
“some plastics are as tough as metal” (s)ruffianly, toughviolent and lawless“the more ruffianly element”,
“tough street gangs” (s)bad, toughfeeling physical discomfort or pain (‘tough’ is occasionally used colloquially for ‘bad’)“my throat feels bad”,
“she felt bad all over”,
“he was feeling tough after a restless night” (a)toughresistant to cutting or chewing (s)hard, toughunfortunate or hard to bear“had hard luck”,
“a tough break”