Keywords: heartbeat, love, beat (heart), throb, fall in love
As a Noun
The regular movement of the heart as it pumps blood around the body. English = heartbeat.
A very strong feeling of affection for someone who you are romantically or sexually attracted to. English = love.
As a Verb or Adjective
Of the heart, to move as it pumps blood around the body. English = beat, throb.
To feel romantically or sexually attracted to someone. English = love. Idiomatic English = (be) in love.
To start to be in love with someone. Idiomatic English = fall in love.