定昇 (for 定期昇給)Each of these three abbreviations appears in kokugo dictionaries, but many similar abbreviations do not (my correspondent mentions as an example 懐電 for 懐中電灯). As such abbreviations can be difficult for learners of Japanese to figure out, a specialized dictionary, if one does not already exist, would be of value.
地裁 (for 地方裁判所)
入試 (for 入学試験)
(February 12, 2003)