to give opportunity to (somebody or something), whether by positive action or by failure to prevent them; to allow (somebody) to do something
She lets the children play in the yard
He let his beard grow
to allow (something or somebody) to move or pass in a specified way
Don't let the dogs loose
Please let us through
to cause (something) to happen
to let it be known
compare let's
used in the imperative to introduce a request or proposal
Let us go now
Just let him try
in mathematics, used to express a proposition or assumption
Let AB be equal to BC
to allow somebody the use of (accommodation) for rent or lease
to assign (a contract) after receiving bids
to stop or refrain from disturbing or interrupting (somebody or something)
to mention (something) casually as if by accident
to aim a blow or lose one's temper
see go1
to insert (something) into a surface
a tablet let into the wall
to give (somebody) freedom of access to something
You can't let him loose on the files just yet
to behave with relaxed ease or abandonment
to allow one's appearance to deteriorate