a section of something that is long and narrow; "a length of timber"; "a length of tubing"
the linear extent in space from one end to the other; the longest horizontal dimension of something that is fixed in place; "the length of the table was 5 feet"
the property of being the extent of something from beginning to end; "the editor limited the length of my article to 500 words"
the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose; "he gave me an assist with the housework"; "could not walk without assistance"; "rescue party went to their aid"; "offered his help in unloading"
a resource; "visual aids in teaching"; "economic assistance to depressed areas"
a gift of money to support a worthy person or cause
originally an apple from the tree of knowledge of good and evil in the Garden of Eden; it is now used to refer to anything that is tempting but dangerous (as sexuality)