"typically understand" is a grammatically correct phrase and can be used in written English.
It is typically used to describe something that is commonly or generally understood or accepted by most people. Example: "In most cultures, people typically understand the concept of respect and its importance in relationships."
We typically understand austerity as an economic policy – low public spending and high taxes.
In fact, one- to three-year-olds typically understand five times as many words as they actually use in everyday speech.
Penetration testers who specialize in application and databases typically understand what it takes to create applications and how they interact with databases.
While punctuality lies at the heart of what we typically understand by a good trip, I have often longed for my plane to be delayed — so that I might be forced to spend a bit more time at the airport.
(N'Ko means "I say" in Manden languages; speakers of Manden languages can typically understand one another even if they don't use all the same words for the same things).
Hiroshima has played an important role in how Americans typically understand both the end of the Second World War and the origins of the Cold War, but it has shown up rarely in the speeches of most Presidents, and then usually as a generic invocation of the nuclear age — with heavy emphasis on the past tense and passive voice.
Spanish Romanticism, typically understood as having two branches, had no single leader.
Graph #1 shows different rankings of efficiencies than what is typically understood by the industry.
Because the genetic origins of Mendelian diseases and cancer are so different, they are typically understood to be distinct phenomena.
By contrast, the value of a company's intangible assets is typically understood only by the company itself or its close partners.
Likewise, "pain" is typically understood so as to include all negative feelings or experiences, such as aches, discomfort, fear, guilt, anxiousness, regret, and so forth.
