yellow oval fruit with juicy acidic flesh
"She sliced the lemon in half to squeeze its juicy, acidic flesh into the iced tea."
a strong yellow color
"The traffic light flashed in an alarming lemon hue that stood out against the gray sky."
a small evergreen tree that originated in Asia but is widely cultivated for its fruit
"The old lemon tree in my grandmother's garden has been producing sweet fruit every year since it was planted."
a distinctive tart flavor characteristic of lemons
"The chef added a squeeze of fresh lemon to brighten the heavy sauce with its distinctive tart flavor."
A yellowish citrus fruit.
"She squeezed half a lemon into the pitcher to add some fresh citrus flavor."
Usage: Use this word to refer specifically to the sour, yellow citrus fruit rather than its adjective form describing a lemony flavor. It is often confused with "lime," but remember that limes are typically green and less acidic.
To flavour with lemon.
"She decided to zest and juice some lemons to flavor the cake batter."
Containing or having the flavour/flavor and/or scent of lemons.
"The cake was infused with a bright, zesty lemon flavor that made it perfect for summer."
In plain English: A lemon is something that doesn't work right and has serious problems with it.
"The mechanic replaced that lemon car with a brand new model."
A surname.
"Mr. Lemon helped organize the community garden last summer."
The word "lemon" comes from the Arabic and Persian words for citrus fruit, which were borrowed into English via Old French. It is ultimately derived from a Sanskrit term meaning "lime."