There are 2 definitions of lb in English:

lb1

Line breaks: lb

abbreviation

1Pound(s) (in weight): he left the hospital weighing 110 lb
[from Latin libra]
1.1 Cricket Leg bye(s).

Definition of lb in:

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Word of the day setose
Pronunciation: ˈsiːtəʊs
adjective
bearing bristles or setae; bristly

There are 2 definitions of lb in English:

LB2

Line breaks: LB

abbreviation

Liberia (international vehicle registration).