H

handle v. (of a condition being signaled)

to perform a non-local transfer of control, terminating the ongoing signaling of the condition.

handler n. 

a condition handler.

hash table n. 

an object of type hash-table, which provides a mapping from keys to values.

home package n. (of a symbol)

the package, if any, which is contents of the package cell of the symbol, and which dictates how the Lisp printer prints the symbol when it is not accessible in the current package. (Symbols which have nil in their package cell are said to have no home package, and also to be apparently uninterned.)