Matching Pairs Phrasal verbs and vocabOnline version Vocabulary (B2-C1) by Emilie Hines 1 uncertain with no final decision. 2 You know or have access to something that can be useful to you. 3 to explain or describe something in a clear and detailed way 4 a large increase in activity or in the level of something 5 to think that a belief or opinion is probably correct 6 significant change that often causes problems 7 to stop holding something or someone: Incline to/towards Armed with lay out let go of Ramp up up in the air upheaval