Englishfor English speakers
undertake
Verb
—
If you undertake something, you take responsibility for doing it and you start to do it.
He is in charge of this project and has undertaken this work largely single-handed since July.
After a common two years, some students undertake industrial or professional placement in their third year.
Britain has apparently undertaken to review its own aid to Vietnam.
a
Determinative
—
A is used when the following word could be any of a certain type.
Compare "A book I saw on the shelf" and "The book I gave you yesterday".
a
Noun
—
A is the first letter of the alphabet.
The letter "a" comes before "b".
—
In some schools, an A is a very high grade.
Ron got an A on his earth science test.
journey
Noun
—
A journey is a trip.
Timothy left on a long journey.
journey
Verb
—
If you journey to somewhere, you travel there.
We journeyed from town to town.