Key: "S:" = Show Synset (semantic) relations, "W:" = Show Word (lexical) relations
Display options for sense: (gloss) "an example sentence"
Verb
S: (v) toughen (make tough or tougher) "This experience will toughen her"
Adjective
S: (adj) tough, toughened (physically toughened) "the tough bottoms of his feet"
S: (adj) tempered, treated, hardened, toughened (made hard or flexible or resilient especially by heat treatment) "a sword of tempered steel"; "tempered glass"