Due to EFL undergraduate students' ineffective learning strategies, which mirror lack of autonomy, this paper is a pilot study into how use of Cambridge Dictionaries Online can affect undergraduate students' autonomy or self-reliance in a Thai EFL context. The link was selectively integrated in a writing classroom as a tool to improve their English during writing assignments because it appears to be more comprehensive than others. Seventy three students participated in the study and completed a questionnaire based on arguments that new generations or young learners can relate themselves to the link viewed as learning technology and in turn possess positive attitude toward and motivation in learning English autonomously. Although the quantitative results are positive to some extent, they offer some directions for EFL teachers to guide their students in moving toward autonomy. Limitation and recommendations for future study are provided.