Parties are commonly grouped by ideology/ethnic affiliation and by the group with which they were listed on the ballot of the Iraqi National Assembly election, 2005.

Statements are commonly grouped into methods (functions), methods into classes, and classes into namespaces.

Retrotransposons are commonly grouped into three main orders:

Manx people living in the UK were commonly grouped by the 2001 census under "White British".

The channels are commonly grouped into repeater inputs, simplex, and repeater output frequencies.

The terms contained within the brackets are commonly grouped as the quasi-propulsive coefficient (, ).

These seasons are commonly grouped into years such as "2006-07 Australian bushfire season" and typically run from June one year until May the next year.

He is commonly grouped under the loose association of filmmakers known as the "Sixth Generation" of the Cinema of China.

Health care practitioners are commonly grouped into four key fields:

Violins, on the other hand, are commonly grouped in sections.