to stop someone from doing something or to keep an action or event from occurring

physical force that opposes the motion of an object through a fluid or against a surface

to hinder, block, or impede progress or movement

to stop, withstand, or oppose a force, action, or trend

to physically obstruct or block a path, flow, or passage

to be obstructed; to be hindered

to intentionally hinder or prevent an action, plan, or progress from succeeding

to hinder the movement of substances like liquid or air through a pipe, vessel, or channel

to clog up, block flow, or become silted up

to block, obstruct, or prevent someone from proceeding or carrying out an action

to advise against or stop someone from doing something through persuasion

the physical property of a material to oppose the flow of electric current

to hinder, block, or hamper progress or flow

to stop or check an enemy or opponent's advance through defensive action

to block or obstruct a path, communication, or flow

electrical impedance

regardless of weather conditions; rain, hail or shine

to stop or hinder someone or something from proceeding

to stop, obstruct, or bar the way of someone or something in transit

untold dangers and difficulties

fire resistant; flame retardant

dangerous and difficult (path or obstacles)

numerical value of electrical impedance

to check or stop the progress or development of a process, trend, or abstract force

rheostat (variable resistor)

to pass through or move forward without any obstacles or obstructions

to use all sorts of excuses

to impede, check, or hold back the progress or development of something

to cut off or obstruct a route, access, or line of communication

to discourage or prevent an action or development through fear or countermeasures

to intentionally create obstacles or difficulties to hinder or prevent progress

to stop and hold someone or something, preventing them from proceeding or escaping

to block a shot (in basketball)

(law) obstructing government administration (Hong Kong)

(computing) denial-of-service attack (DoS/DDoS)

to block or prevent someone or something from proceeding by using force or strong effort

bias impedance (electronics)

to deter

(literary) long and arduous (of a journey or road)

immobilized or delayed by rain

atmospheric drag

air resistance; aerodynamic drag

wind damper (engineering)