So the word Tensor in TensorFlow represents the multidimensional array or the combination of scalar and vectors which flows through the graph or the network of layers.
let me explain the scalar, vector(array) and matrix(multidimensional array) for you.
Vector is an array like combination of values having the direction or dimension of axis 1 called rank 1 tensor with shape(3,).
Matrix is a vector with dimension of 2 axis called as rank 2 tensor with shape(2,3).
tensor is the multidimensional array with axis more than 2 with the shape(2,2,3).
tf.constant([[[1,2,3], [4,5,6]], [[7,8,9], [10,11,12]],])
tensor can be converted to numpy by using np.numpy() or tensor.numpy()