PLANT.

• plant [transitive]
• 1

  plants/seeds

  to put plants or seeds in the ground to grow:
• Residents have helped us plant trees.
• We've planted tomatoes and carrots in the garden.
• plant a field/garden/area etc (with something)
• a hillside planted with fir trees
• 2

  put something somewhere

   [always + adverb/preposition] informal to put something firmly in or on something else
• plant something in/on etc something
• He came up to her and planted a kiss on her cheek.
• She planted her feet firmly to the spot and refused to move.
• 3

  hide illegal goods

  informal to hide stolen or illegal goods in someone's clothes, bags, room etc in order to make them seem guilty of a crime
• plant something on somebody
• She claims that the police planted the drugs on her.
• 4

  bomb

   plant a bomb

  to put a bomb somewhere:
• Two men are accused of planting a bomb on the plane.
• 5

  person

  to put or send someone somewhere, especially secretly, so that they can find out information:
• The police had planted undercover detectives at every entrance.
• 6

   plant an idea/doubt/suspicion (in somebody's mind)

  to make someone begin to have an idea, especially so that they do not realize that you gave them the idea:
• Someone must have planted the idea of suicide in his mind.

• plant something ↔ out 

  phrasal verb
• to put a young plant into the soil outdoors, so that it has enough room to grow:
• The seedlings should be planted out in May.
• Definition from the Longman Dictionary of Contemporary English 
• Advanced Learner's Dictionary.