expatiate on

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See: expand
References in periodicals archive ?
Chapter four examines how James Weldon Johnson's The Autobiography of an Ex-Coloured Man (1912) uses parody to depict the coloured man passing for white as a result, not as the cause, of societal alienation, and argues that this enables the author to expatiate on white supremacist values and racial division.
The new Corporate Update section of our company's website allows management to expatiate on material events placed into the public domain and to keep shareholders, and the investment community at large, informed of important corporate and scientific progress," stated Shalom Z.