smooth, trouble free

(linguistics) liaison: the pronunciation of a word-final consonant due to a following vowel sound in French / (cooking): a thickener added to soups or sauces, such as flour, cream, or beurre manié

communication: the conveying of information between two or more entities

role

mass communication; mass media

gender role

(linguistics) "role language": unique language usage serving as a marker of social identity in fictional speech