Systemic functional linguistics is a theory considered to be based firmly on the Saussurean principles of the sign, albeit it some modifications.

'Lexicogrammar' is a term peculiar to systemic functional linguistics.

He is considered an influential scholar in the fields of functional and cognitive linguistics.

The term metafunction originates in systemic functional linguistics and is considered to be a property of all languages.

The term metafunction is particular to systemic functional linguistics.

As the name suggests, the notion of system is a defining aspect of systemic functional linguistics.

In systemic functional linguistics, this has been described as the trinocular perspective.

This gives systemic functional linguistics an affinity with studies of complex systems.

He is the leading figure in the 'Sydney School' of systemic functional linguistics.

It is part of a social semiotic approach to language called systemic functional linguistics.