| Noun | 1. | tiller - a shoot that sprouts from the base of a grass | |
| 2. | tiller - someone who tills land (prepares the soil for the planting of crops) | |
| 3. | tiller - lever used to turn the rudder on a boatlever - a rigid bar pivoted about a fulcrum rudder - (nautical) steering mechanism consisting of a hinged vertical plate mounted at the stern of a vessel | |
| 4. | tiller - a farm implement used to break up the surface of the soil (for aeration and weed control and conservation of moisture)harrow - a cultivator that pulverizes or smoothes the soil | |
| Verb | 1. | tiller - grow shoots in the form of stools or tillersacquire, develop, produce, grow, get - come to have or undergo a change of (physical features and attributes); "He grew a beard"; "The patient developed abdominal pains"; "I got funny spots all over my body"; "Well-developed breasts" | |