tour

1. tower
2. rook
3. apartment building

du

• Contraction

  Contraction of de + le (“of the”)

• Article

télégraphe

telegraph

optique

• Adj

  optic, optical

• Noun

au

Contraction of à le (“to the, for the, at the”).

près

• Adv

  near (a time or a place); close (to a time or a place)

• Prep

de la

1. of the
2. some; the feminine partitive article

chapelle

1. chapel
2. covering for the head