Leung, Helen Hue Lam (2012). The semantics of the Cantonese utterance particle ‘laa1’. In Maïa Ponsonnet, Loan Dao, & Margit Bowler (Eds.), Proceedings of the 42nd Australian Linguistic Society Conference – 2011 (pp. 245-280). http://langfest.anu.edu.au/index.php/als/als2011. PDF (open access)

This paper will carry out an in-depth semantic analysis of one of the most salient and frequently used Cantonese utterance particles, laa1 (high level tone). Cantonese utterance particles occur in continuous talk every 1.5 seconds on average, and play a very important role in Cantonese speakers’ self-expression.
There are approximately one hundred utterance particles in Cantonese, outnumbering those in Mandarin. However, it has been suggested that the particles have no meaning, and there has not been much comprehensive semantic analysis of individual particles. Where utterance particles have
previously been described, the descriptions do not fully and accurately convey their meanings.
In this study, a range of naturally occurring examples of laa1 from the Hong Kong Cantonese Corpus will be examined, and an invariant meaning of laa1 proposed using the Natural Semantic Metalanguage (NSM). This approach offers advantages over previous descriptions of laa1, and will allow a simple,
precise and translatable definition to be constructed. It is found that laa1 indicates some shared knowledge between a speaker and an addressee. This study addresses the current gap in Cantonese linguistics, and contributes to the understanding of Cantonese utterance particles.