/əbˈstrʌkt/
VERB
To block, close, or fill a passage, entrance, or route so that movement through it becomes difficult or impossible.
Placing objects or barriers in a doorway, road, passage, or other route to prevent or restrict movement.
Filling a pipe, drain, channel, or other passage with material that prevents or restricts the normal flow of liquid or other substances.
VERB
To hinder, delay, restrict, or interfere with the progress, development, or completion of something.
Making an activity, process, plan, or development more difficult or slower to complete.
Intentionally interfering with an inquiry, legal process, or official investigation by withholding information, concealing evidence, or preventing investigators from carrying out their work.
Restraining, confining, or limiting someone's ability to move, act, or proceed freely.
VERB
To stand or be positioned in front of something, preventing it from being seen clearly.
Being positioned between an observer and an object, person, or scene so that it becomes difficult or impossible to see.