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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

object, physical object go
a tangible and visible entity

whole, unit go
an assemblage of parts that is regarded as a single entity

living thing, animate thing go
a living (or once living) entity

organism, being go
a living thing that has (or can develop) the ability to act or function independently

plant, flora, plant life go
(botany) a living organism lacking the power of locomotion

vascular plant, tracheophyte go
green plant having a vascular system: ferns, gymnosperms, angiosperms

herb, herbaceous plant go
a plant lacking a permanent woody stem

lettuce
any of various plants of the genus Lactuca

noun.plant

5 Subcategories

garden lettuce, common lettuce, Lactuca sativa go
annual or perennial garden plant having succulent leaves used in salads
cos lettuce, romaine lettuce, Lactuca sativa longifolia go
lettuce with long dark-green spoon-shaped leaves
head lettuce, Lactuca sativa capitata go
distinguished by leaves arranged in a dense rosette that develop into a compact ball
leaf lettuce, Lactuca sativa crispa go
distinguished by leaves having curled or incised leaves forming a loose rosette that does not develop into a compact head
celtuce, stem lettuce, Lactuca sativa asparagina go
lettuce valued especially for its edible stems