Qual é a diferença entre Tilt e lean ?

Oi Vanessa, não entendi sua pergunta. As duas palavras possuem vários significados, alguns similares, outros nem tanto. Sempre que mandar uma pergunta tente colocar um pouco de contexto, uma frase onde ela foi usada, por exemplo.

Quanto mais informação houver na sua pergunta, mas precisa será a resposta que vai obter.

"Lean" is mostly used when something is resting against something, supporting something, normally on an angle.

"Lean the ladder against the wall."
"The wind was so strong that the girl leaned into the man for support."

It can also be used to describe something that is not straight but on an angle.

"The wall is leaning over a bit."

"Tilt" is used to show that something has been moved or is going to be moved to a sloping position or to another angle.

"Tilt the mirror more so I can see my feet."
"You need to tilt the cup more to get the water to pour out."

Is this what you are looking for?