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