Vocabulary mastery is a measure of a person's understanding of the vocabulary of a language and his ability to use that vocabulary both orally and in writing. Vocabulary mastery is a person's ability to recognize, understand, and use words properly and correctly by listening, speaking, reading, and writing.The purpose of this research is toexplainthe effectiveness of guessing games in songs to enhance vocabulary of verb EFL students This research was conducted and analyzed in class VIII MTS NU 01 Cepiring. The research method used is a quasi-experimental research design with pre-test and post-test control group design. The research instrument is a test. The experimental class is taught by using guessing game techniques in song, while the control class used conventional method. Furthermore, to analyze the research data using SPSS Statistics 23. The results showed that the average score of the experimental class students was 73.85 and the control class students' average score was 42.41. This means that there is a significant difference in the average value of the two classes. Hypothesis testing shows that sig. The calculated t value is -20,984 with an alpha of 0.05 which means it has a t table of 2.060. In other words, t count < t table. This shows that H0 is rejected and Ha is accepted. In other words, guessing games are effective for increasing vocabulary of verb in grade VIII MTS NU 01 Cepiring students.