Definitions
1.Adjectivefalling behind, not keeping up the pace
2.AdjectiveOccurring after; indicating the later phase of
3.NounThe covering of something with strips of felt, wood etc, either as insulation or for protection.
4.NounThe material so used.
5.NounA prison sentence, originally one of at least three years.
6.Verbpresent participle and gerund of lag