This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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ad. To a great degree; especially: I particularly like the brown shoes.

ad. With particular reference or emphasis; individually or specifically: "Everyone has a moment in history which belongs particularly to him” ( John Knowles).

ad. With regard to particulars; in detail.

ad. especially;

ad. to a great extent

ad. specifically, uniquely or individually

ad. in detail; with regard to particulars

ad. In a particular manner; expressly; with a specific reference or interest; in particular; distinctly.

ad. In an especial manner; especially; in a high degree

In a particular manner; with specific or special reference or distinctness; especially.

In an especial manner; in a high or great degree: as, to be particularly unfortunate.

ad. to a distinctly greater extent or degree than is common

ad. uniquely or characteristically

ad. specifically or especially distinguished from others

"Sexual attraction was not something we were supposed to discuss, particularly in a group, particularly with Rama, particularly regarding one of Rama's women, and * particularly* regarding Dana who, along with Anne, was Rama's closest disciple."

expressly    distinctly    especially