Definitions
1.NounA distance approximately equal to the length of a human's arm."I need about ten arm's lengths of yarn."
2.NounA position not suggesting or inviting intimacy."She remained at arm's length though we worked together for many years."
3.NounA condition of independence and parity for parties to a transaction."The police work at arm's length from the army."
4.AdjectiveBarely within reach.
5.AdjectiveDistant, detached.
6.AdjectiveIndependent, but related.