It is in year 2 that multiplication and division really become important. Understanding terms such as ‘lots of’, ‘share equally’ and ‘divide’ are all introduced in a practical sense i.e. children need plenty of opportunities to share items out and to group into sets.
The vocabulary introduced in year 2 concerning multiplication and division of numbers includes:
lots of           groups of
times            multiply          multiplied by      multiple of
once             twice               three times
four times   five times       up to ten times
times as (long, big etc)
repeated addition
array             row              column
share equally     one each    two each   three each    etc
group in pairs        group in tens
equal groups of
divide          divided by               divided into
Find a larger version of this list in the link below.
Remember that new vocabulary should not be introduced in isolation, but in suitable contexts.
(Taken from Mathematical Vocabulary Book  DfEE)
Maths vocabulary: multiplication and division