tiller

(noun) a shoot that sprouts from the base of a grass.

(noun) someone who tills land (prepares the soil for the planting of crops).

(noun) lever used to turn the rudder on a boat.

(noun) a farm implement used to break up the surface of the soil (for aeration and weed control and conservation of moisture). Synonyms: cultivator.

(verb) grow shoots in the form of stools or tillers. Synonyms: stool.