Vocabulary has an important role in language learning at the college level, but in teaching practice, various obstacles are experienced by lecturers in implementing effective vocabulary learning. This study took place in Batam, Indonesia, and aims to investigate the English lecturers’ beliefs and practices in vocabulary learning; the phenomena of how they negotiate their teaching practices and what determines their choice of teaching methods when it comes to vocabulary learning. Five English lecturers from different universities were interviewed. The results of the interview were transcribed and analyzed based on the themes that appeared from data. The results showed that a requirement for practicality in class, curriculum, student atmosphere, and lecturers’ confidence in applying the right methods have effects on vocabulary learning. Lecturers have combined vocabulary learning with reading, writing, listening, and speaking in class. The main reference of a coursebook as the main guidance of the vocabulary learning varied between one class and another. All lecturers stated that they should find their own way to adopt external sources such as songs, vocabulary learning programs, and games to combine with their coursebook to beneficially meet the students’ preference. The new technology of teaching and learning is now part of classroom activities. Henceforth, this study concludes that the lecturers’ beliefs in the vocabulary learning approach are important. In practice, the lecturers need to combine them with various methods as the class situation do not always count on academic interests.

A robust online learning platform is critical for extending education beyond the classroom and facilitating interactive and individualized learning. Language learning has developed some patterns due to social interactions and independent learning experiences. Vocabulary motivation and achievement are critical components of students' English proficiency. Nonetheless, both variables are recognized as critical by lecturers and students, but receive less attention. The purpose of this study was to examine the effect of Busuu, an online learning platform, on the motivation and achievement of university students in Indonesia when it comes to vocabulary learning. The platform's use as an independent variable, whereas motivation for vocabulary learning and vocabulary achievement, were dependent variables. This study employed a quantitative methodology. Busuu facilitates the learning experience by keeping track of the number of words learned, the level of fluency, and the duration of the learning day. The researchers refer to fluency as the indicator in the study. The questionnaire and test were adapted and modified from previous research on motivation and achievement in vocabulary learning. There were 98 participants. The research discovered that the Busuu online learning platform's performance significantly contributes to the motivation and achievement of vocabulary learners. The study proposes a new model of English learning that incorporates online learning platforms in order to boost students' motivation and vocabulary achievement.