converge
Verb
Definition: come together at a point or focus
Examples: The paths of the two rivers converged at the bottom of the mountain. | After much debate, the group finally converged on a decision for the project.
opaque
Adjective
Definition: lacking transparency or translucency; not allowing light to pass through
Examples: The curtains in the room were opaque, blocking out all of the sunlight and keeping the room dark. | The window pane was painted with an opaque black tint, blocking out any light from entering the room.
stymie
Verb
Definition: hinder or block progress or action
Examples: The complex math problem stymied the student, leaving them feeling frustrated and stuck. | The difficult puzzle would stymie even the smartest person in the room.
pervasive
Adjective
Definition: widespread or prevalent throughout an area or group of people
Examples: The pervasive smell of freshly baked cookies filled the entire kitchen. | The pervasive odor of the flower permeated the entire room.
undermine
Verb
Definition: weaken or damage someone or something, especially someone's confidence or their power or authority
Examples: I don't want to undermine your hard work, so double check your answers before submitting the test. | The hacker's actions were designed to undermine the company's security system.