A lash can refer to different things depending on the context. Here are some possible meanings:

• Lash (noun): A lash can be a thin strip of leather at the end of a whip, or a hit with this, especially as a form of punishment. For example, "He received 30 lashes for the crime."
• Lash (verb): To lash can mean to whip or fling about violently, to strike or beat with or as if with a whip, or to make a verbal attack or retort. For example, "The waves lashed the shore."
• Eyelash (noun): An eyelash is one of the hairs that grows at the edges of the eyelids. The lashes grow outwards in up to six layers on the edges of the upper and lower eyelids. Eyelashes protect the eye from debris, dust, and small particles and perform some of the same functions as whiskers do on a cat or a mouse in the sense that they are sensitive to being touched, thus providing a warning that an object (such as an insect) is near the eye (which then closes reflexively) . For example, "She applied mascara to her lashes."
• Lash lift (noun): A lash lift is a process in which the natural lashes are curled and lifted, making lashes appear longer and eyes more open. It is a semipermanent treatment that curls the hairs and is a great in-between option for those who want more than mascara but dont want to commit to extensions. For example, "She got a lash lift before her vacation."