Key
Answer
Synonyms: Answer, solution, pointer, lead, foundation for, condition, essential, way, path, secret, guide, glossary, explication, clarification, annotation, legend, clue, explanation, cue, basis of, requisite for, precondition, means, route, passport, formula, gloss, interpretation, translation, exposition, index, and code.
Tone
Synonyms: Tone, timbre, tone colour, pitch, tonality, and modulation.
Style
Synonyms: Style, mood, spirit, feeling, quality, atmosphere, character, vein, feel, flavour, and humour.
Crucial
Synonyms: Crucial, essential, basic, pivotal, decisive, vital, salient, chief, leading, important, central, indispensable, fundamental, critical, dominant, principal, prime, major, main, and significant.
Example Sentences
She lost the key to success.
The key unlocks the hidden treasure.
His advice was the key factor.
Knowledge is the key to understanding.