Describing data

IELTS vocabulary · English · Unit 4

• fluctuate v.: to rise and fall or change repeatedly
• plateau n., v.: a flat high area; a stage with no further change
• surge n., v.: a sudden large increase; to increase suddenly
• decline v., n.: to decrease or become worse; to refuse politely
• marginal adj.: very small in amount or importance
• substantial adj.: Large in amount or importance
• steadily adv.: at a regular rate, without sudden changes
• peak n., v., adj.: The highest point or greatest level
• trough n.: a long open container; a low point or level
• percentage n.: An amount expressed as a fraction of one hundred
• gradual adj.: happening slowly, in small steps
• dramatically adv.: by a large, noticeable amount; in a theatrical way